Ketoconazole Shampoo
30/06/10
Generic Name: Ketoconazole (kee-toe-KOE-na-zole)
Brand Name: Nizoral A-D
Ketoconazole Shampoo is used for:
Treating scaling associated with dandruff. It may also be used for other conditions as determined by your doctor.
Ketoconazole Shampoo is an imidazole antifungal. It works by killing sensitive fungi by interfering with the formation of the fungal cell membrane and weakening it. The weakened cell membrane allows the cell contents to leak out and results in the death of the fungus.
Do NOT use Ketoconazole Shampoo if:
- you are allergic to any ingredient in Ketoconazole Shampoo
Contact your doctor or health care provider right away if any of these apply to you.
Before using Ketoconazole Shampoo:
Some medical conditions may interact with Ketoconazole Shampoo. Tell your doctor or pharmacist if you have any medical conditions, especially if any of the following apply to you:
- if you are pregnant, planning to become pregnant, or are breast-feeding
- if you are taking any prescription or nonprescription medicine, herbal preparation, or dietary supplement
- if you have allergies to medicines, foods, or other substances
- if you have low blood sugar levels, liver disease, or porphyria (a blood disease), sulfite sensitivity, or you drink more than 3 alcohol-containing drinks a day
Some MEDICINES MAY INTERACT with Ketoconazole Shampoo. Because little, if any, of Ketoconazole Shampoo is absorbed into the blood, the risk of it interacting with another medicine is low.
Ask your health care provider if Ketoconazole Shampoo may interact with other medicines that you take. Check with your health care provider before you start, stop, or change the dose of any medicine.
How to use Ketoconazole Shampoo:
Use Ketoconazole Shampoo as directed by your doctor. Check the label on the medicine for exact dosing instructions.
- Moisten hair and scalp with water. Apply enough shampoo to wash your scalp and hair. Gently massage the entire scalp, leaving the shampoo on for about 5 minutes. Rinse thoroughly, then dry your hair as you normally do.
- Keep Ketoconazole Shampoo out of your eyes, nose, and mouth. If this occurs, wash with water and contact your doctor, nurse, or pharmacist.
- If you miss a dose of Ketoconazole Shampoo, use it as soon as possible. If it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not use 2 doses at once.
Ask your health care provider any questions you may have about how to use Ketoconazole Shampoo.
Important safety information:
- Be sure to use Ketoconazole Shampoo for the full course of treatment. If you do not, the medicine may not clear up your infection completely. The bacteria could also become less sensitive to this or other medicines. This could make the infection harder to treat in the future.
- If you use topical products too often, your condition may become worse.
- If your symptoms do not improve or if they become worse, check with your doctor.
- Some of these products contain sulfites. Sulfites may cause an allergic reaction in some patients (eg, asthma patients). If you have ever had an allergic reaction to sulfites, ask your pharmacist if your product has sulfites in it.
- Talk to your doctor before you take Ketoconazole Shampoo if you drink more than 3 drinks with alcohol per day.
- Using Ketoconazole Shampoo on hair that has been permanently waved may cause a loss of the curl.
- Ketoconazole Shampoo should be used with extreme caution in CHILDREN; safety and effectiveness in children have not been confirmed.
- PREGNANCY and BREAST-FEEDING: If you become pregnant, contact your doctor. You will need to discuss the benefits and risks of using Ketoconazole Shampoo while you are pregnant. If you are or will be breast-feeding while you use Ketoconazole Shampoo, check with your doctor. Discuss any possible risks to your baby.
Possible side effects of Ketoconazole Shampoo:
All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome:
Itching; mild irritation or stinging; oiliness and dryness of hair and scalp.
Seek medical attention right away if any of these SEVERE side effects occur:
Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); increased or abnormal hair loss; reddening, blistering, peeling, itching, or burning of your skin.
This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088. You may also report side effects at http://www.fda.gov/medwatch.
If OVERDOSE is suspected:
Contact 1-800-222-1222 (the American Association of Poison Control Centers), your local poison control center (http://www.aapcc.org), or emergency room immediately.
Proper storage of Ketoconazole Shampoo:
Store Ketoconazole Shampoo between 59 and 77 degrees F (15 and 25 degrees C). Store in a tightly closed container. Store away from heat, moisture, and light. Do not store in the bathroom. Keep Ketoconazole Shampoo out of the reach of children and away from pets.
General information:
- If you have any questions about Ketoconazole Shampoo, please talk with your doctor, pharmacist, or other health care provider.
- Ketoconazole Shampoo is to be used only by the patient for whom it is prescribed. Do not share it with other people.
- If your symptoms do not improve or if they become worse, check with your doctor.
This information is a summary only. It does not contain all information about Ketoconazole Shampoo. If you have questions about the medicine you are taking or would like more information, check with your doctor, pharmacist, or other health care provider.
Ketoconazole Gel
30/06/10
Generic Name: Ketoconazole (KEE-toe-KON-a-zole)
Brand Name: Xolegel
Ketoconazole Gel is used for:
Treating a skin condition called seborrheic dermatitis.
Ketoconazole Gel is an antifungal agent. It works by killing the fungus causing the skin condition.
Do NOT use Ketoconazole Gel if:
- you are allergic to any ingredient in Ketoconazole Gel
Contact your doctor or health care provider right away if any of these apply to you.
Before using Ketoconazole Gel:
Some medical conditions may interact with Ketoconazole Gel. Tell your doctor or pharmacist if you have any medical conditions, especially if any of the following apply to you:
- if you are pregnant, planning to become pregnant, or are breast-feeding
- if you are taking any prescription or nonprescription medicine, herbal preparation, or dietary supplement
- if you have allergies to medicines, foods, or other substances
- if you have a weakened immune system, liver problems, or the blood disease porphyria
Some MEDICINES MAY INTERACT with Ketoconazole Gel. Because little, if any, of Ketoconazole Gel is absorbed into the blood, the risk of it interacting with another medicine is low.
Ask your health care provider if Ketoconazole Gel may interact with other medicines that you take. Check with your health care provider before you start, stop, or change the dose of any medicine.
How to use Ketoconazole Gel:
Use Ketoconazole Gel as directed by your doctor. Check the label on the medicine for exact dosing instructions.
- An extra patient leaflet is available with Ketoconazole Gel. Talk to your pharmacist if you have questions about this information.
- Wash your hands before and immediately after using Ketoconazole Gel.
- Spread a thin layer of Ketoconazole Gel onto the affected area with the tips of your fingers. Gently rub it in. Be sure to cover the entire affected area and the healthy skin around it.
- Do not touch your eyes or nose while you are applying Ketoconazole Gel.
- Wait for at least 20 minutes after you apply Ketoconazole Gel before you apply makeup or sunscreen.
- Do not wash the area where you applied Ketoconazole Gel for at least 3 hours after you apply it.
- If you miss a dose of Ketoconazole Gel, use it as soon as possible. If it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not use 2 doses at once.
Ask your health care provider any questions you may have about how to use Ketoconazole Gel.
Important safety information:
- Ketoconazole Gel is for external use only. Do not get it in your eyes, nose, or mouth. If you get it in your eyes, rinse at once with cool tap water. Do not get Ketoconazole Gel in your vagina.
- Do not use Ketoconazole Gel for other skin conditions at a later time.
- Ketoconazole Gel is flammable. Do not store or use near an open flame. Do not smoke during or right after use of Ketoconazole Gel.
- Ketoconazole Gel should be used with extreme caution in CHILDREN younger than 12 years old; safety and effectiveness in these children have not been confirmed.
- PREGNANCY and BREAST-FEEDING: If you become pregnant, contact your doctor. You will need to discuss the benefits and risks of using Ketoconazole Gel while you are pregnant. It is not known if Ketoconazole Gel is found in breast milk after topical use. If you are or will be breast-feeding while you use Ketoconazole Gel, check with your doctor. Discuss any possible risks to your baby.
Possible side effects of Ketoconazole Gel:
All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome:
Mild burning at the application site.
Seek medical attention right away if any of these SEVERE side effects occur:
Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); blisters, irritation, pain, redness, or severe burning at the application site.
This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088. You may also report side effects at http://www.fda.gov/medwatch.
If OVERDOSE is suspected:
Contact 1-800-222-1222 (the American Association of Poison Control Centers), your local poison control center (http://www.aapcc.org), or emergency room immediately.
Proper storage of Ketoconazole Gel:
Store Ketoconazole Gel at room temperature, between 59 and 86 degrees F (15 and 30 degrees C). Store away from heat, moisture, and light. Do NOT store near an open flame. Keep Ketoconazole Gel out of the reach of children and away from pets.
General information:
- If you have any questions about Ketoconazole Gel, please talk with your doctor, pharmacist, or other health care provider.
- Ketoconazole Gel is to be used only by the patient for whom it is prescribed. Do not share it with other people.
- If your symptoms do not improve or if they become worse, check with your doctor.
This information is a summary only. It does not contain all information about Ketoconazole Gel. If you have questions about the medicine you are taking or would like more information, check with your doctor, pharmacist, or other health care provider.
Ketek Pak
30/06/10
Generic Name: telithromycin (Oral route)
tel-ith-roe-MYE-sin
Telithromycin is contraindicated in patients with myasthenia gravis. There have been reports of fatal and life-threatening respiratory failure in patients with myasthenia gravis associated with the use of telithromycin .
Telithromycin is contraindicated in patients with myasthenia gravis. There have been reports of fatal and life-threatening respiratory failure in patients with myasthenia gravis associated with the use of telithromycin .
Commonly used brand name(s):
In the U.S.
- Ketek
- Ketek Pak
Available Dosage Forms:
- Tablet
Therapeutic Class: Antibiotic
Chemical Class: Ketolide
Uses For Ketek Pak
Telithromycin is used to treat a lung infection called community-acquired pneumonia (CAP). It belongs to the family of medicines called antibiotics. Antibiotics are medicines used in the treatment of infections caused by bacteria. They work by killing bacteria or preventing their growth. However, this medicine will not work for colds, flu, or other virus infections .
This medicine is available only with your doctor’s prescription .
Before Using Ketek Pak
In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For this medicine, the following should be considered:
Allergies
Tell your doctor if you have ever had any unusual or allergic reaction to this medicine or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.
Pediatric
No information is available on the relationship of age to the effects of telithromycin in the pediatric population. Safety and efficacy have not been established .
Geriatric
Appropriate studies performed to date have not demonstrated geriatrics-specific problems that would limit the usefulness of telithromycin in the elderly. However, elderly patients are more likely to have age-related renal and liver function impairment, which may require an adjustment in the dose for patients receiving telithromycin .
Pregnancy
| Pregnancy Category | Explanation | |
|---|---|---|
| All Trimesters | C | Animal studies have shown an adverse effect and there are no adequate studies in pregnant women OR no animal studies have been conducted and there are no adequate studies in pregnant women. |
Breast Feeding
There are no adequate studies in women for determining infant risk when using this medication during breastfeeding. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.
Interactions with Medicines
Using this medicine with any of the following medicines is not recommended. Your doctor may decide not to treat you with this medication or change some of the other medicines you take.
- Bepridil
- Cisapride
- Dronedarone
- Mesoridazine
- Pimozide
- Silodosin
- Terfenadine
- Thioridazine
- Tolvaptan
- Ziprasidone
Using this medicine with any of the following medicines is usually not recommended, but may be required in some cases. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.
- Acecainide
- Ajmaline
- Amiodarone
- Amisulpride
- Amitriptyline
- Amoxapine
- Aprindine
- Arsenic Trioxide
- Astemizole
- Atorvastatin
- Azimilide
- Bretylium
- Chloral Hydrate
- Chloroquine
- Chlorpromazine
- Clarithromycin
- Colchicine
- Dasatinib
- Desipramine
- Dibenzepin
- Dihydroergotamine
- Disopyramide
- Dofetilide
- Dolasetron
- Doxepin
- Droperidol
- Encainide
- Enflurane
- Ergoloid Mesylates
- Ergotamine
- Erythromycin
- Everolimus
- Flecainide
- Fluconazole
- Fluoxetine
- Fluticasone
- Foscarnet
- Halofantrine
- Haloperidol
- Halothane
- Hydroquinidine
- Ibutilide
- Iloperidone
- Imipramine
- Isoflurane
- Isradipine
- Ixabepilone
- Lapatinib
- Levomethadyl
- Lidoflazine
- Lorcainide
- Lovastatin
- Mefloquine
- Methadone
- Methylergonovine
- Nilotinib
- Nortriptyline
- Octreotide
- Ondansetron
- Pazopanib
- Pentamidine
- Pirmenol
- Prajmaline
- Probucol
- Procainamide
- Prochlorperazine
- Propafenone
- Protriptyline
- Quetiapine
- Quinidine
- Ranolazine
- Rifampin
- Risperidone
- Romidepsin
- Salmeterol
- Sematilide
- Sertindole
- Simvastatin
- Sotalol
- Spiramycin
- Sulfamethoxazole
- Sultopride
- Sunitinib
- Tadalafil
- Tamsulosin
- Tedisamil
- Telavancin
- Temsirolimus
- Trifluoperazine
- Trimethoprim
- Trimipramine
- Vasopressin
- Venlafaxine
- Verapamil
- Zotepine
Using this medicine with any of the following medicines may cause an increased risk of certain side effects, but using both drugs may be the best treatment for you. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.
- Carbamazepine
- Cyclosporine
- Digoxin
- Fosphenytoin
- Hexobarbital
- Itraconazole
- Ketoconazole
- Metoprolol
- Midazolam
- Phenobarbital
- Phenytoin
- Repaglinide
- Sirolimus
- Tacrolimus
- Theophylline
Interactions with Food/Tobacco/Alcohol
Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. Discuss with your healthcare professional the use of your medicine with food, alcohol, or tobacco.
Other Medical Problems
The presence of other medical problems may affect the use of this medicine. Make sure you tell your doctor if you have any other medical problems, especially:
- Bradycardia (slow heartbeat) or
- Heart rhythm problems or
- Hypokalemia (low potassium in the blood) or
- Hypomagnesemia (low magnesium in the blood) or
- QTc prolongation (rare heart rhythm problem)—May cause these conditions to become worse .
- Hepatitis or
- Jaundice or
- Myasthenia gravis—Should not use in patients with these conditions .
- Kidney disease—May cause side effects to become worse .
Proper Use of telithromycin
This section provides information on the proper use of a number of products that contain telithromycin. It may not be specific to Ketek Pak. Please read with care.
Telithromycin may be taken with or without food. Swallow the tablet whole. Do not crush, break, or chew it .
To help clear up your infection completely, keep taking telithromycin for the full time of treatment, even if you begin to feel better after a few days. If you stop taking this medicine too soon, your symptoms may return.
Take this medicine at the same time every day. Do not take more than one dose in 24 hours .
Dosing
The dose of this medicine will be different for different patients. Follow your doctor’s orders or the directions on the label. The following information includes only the average doses of this medicine. If your dose is different, do not change it unless your doctor tells you to do so.
The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.
- For oral dosage form (tablets):
- For community-acquired pneumonia:
- Adults—800 milligrams (mg) once a day for 7 to 10 days .
- Children—Use and dose must be determined by your doctor .
- For community-acquired pneumonia:
Missed Dose
If you miss a dose of this medicine, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not double doses.
Storage
Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing.
Keep out of the reach of children.
Do not keep outdated medicine or medicine no longer needed.
Ask your healthcare professional how you should dispose of any medicine you do not use.
Precautions While Using Ketek Pak
Telithromycin should not be taken with pimozide (Orap®). Doing so may increase the risk of serious side effects .
If your symptoms do not improve within a few days, or if they become worse, check with your doctor.
Stop taking telithromycin and contact your doctor immediately if you experience symptoms of liver disease. These symptoms include tiredness, body aches, loss of appetite, nausea, yellow skin and eyes, dark urine, light-colored stools, itchy skin, or severe stomach pains. Severe liver problems and liver failure have been reported, and in some cases, liver injury developed quickly and after only a few doses .
This medicine may cause fainting, blurred vision, or other vision problems. If any of these occur, do not drive, use machines, or do anything else that could be dangerous if you are not able to see well or if you feel a lightheaded. If these side effects occur and they bother you, check with your doctor .
This medicine may cause you to have severe diarrhea. Ask your doctor before taking any medicine to stop the diarrhea .
Ketek Pak Side Effects
Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor immediately if any of the following side effects occur:
Rare
- Abdominal pain
- blistering, peeling, or loosening of skin
- blurred vision
- chest pain or discomfort
- chills
- confusion
- convulsions
- cough
- dark urine
- decreased urine
- difficulty with breathing, chewing, swallowing, or talking
- dizziness
- double vision
- drooping eyelids
- dry mouth
- fainting
- faintness, or lightheadedness when getting up from a lying or sitting position suddenly
- fast, slow, or irregular heartbeat
- fever with or without chills
- increased thirst
- itching
- joint pain
- large, hive-like swelling on face, eyelids, lips, tongue, throat, hands, legs, feet, or sex organs
- light-colored stools
- loss of appetite
- mood changes
- muscle pain or cramps
- muscle weakness
- nausea
- nervousness
- numbness or tingling in hands, feet, or lips
- red, irritated eyes
- shortness of breath
- skin rash
- sores, ulcers, or white spots in the mouth or on the lips or tongue
- stomach cramps, tenderness, or pain
- sweating
- tightness in chest
- unusual tiredness or weakness
- upper right abdominal pain
- vomiting
- watery or bloody diarrhea
- weakness or heaviness of the legs
- wheezing
- yellow eyes and skin
Incidence not known
- Black, tarry stools
- clay-colored stools
- continuous vomiting
- dark-colored urine
- decreased appetite
- general feeling of tiredness or weakness
- swelling of feet or lower legs
- unpleasant breath odor
- vomiting of blood
Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:
More Common
- Diarrhea
Less common
- Abnormal dreams
- acid or sour stomach
- belching
- bloated, full feeling, or pressure in the stomach
- burning, crawling, itching, numbness, prickling, “pins and needles”, or tingling feelings
- burning feeling in chest or stomach
- change in color, amount, or odor of vaginal discharge
- change in sense of smell
- change in taste
- difficulty focusing eyes
- difficulty having a bowel movement (stool)
- disturbed attention span
- dry lips
- dry skin
- excess air or gas in stomach or intestines
- feeling of constant movement of self or surroundings
- feeling of warmth, redness of the face, neck, arms and occasionally, upper chest
- frequent urination
- headache
- heartburn
- increased amount of pale, dilute urine
- indigestion
- itching of the vagina or outside genitals
- lack or loss of strength
- lightheadedness
- loose stools
- loss of appetite
- loss of sense of taste
- pain during sexual intercourse
- pain or tenderness around the eyes and cheekbones
- passing gas more often than usual
- redness of skin
- redness, swelling, or soreness of the tongue
- sensation of spinning
- shakiness in the legs, arms, hands, or feet
- skin rash, encrusted, scaly and oozing
- sleeplessness
- sore mouth or tongue
- sore throat
- stomach upset or pain
- stuffy or runny nose
- swelling or puffiness of the face
- tenderness in the stomach area
- thick, white curd-like vaginal discharge, without odor or with mild odor
- tooth discoloration
- trouble sleeping
- weight loss
- white patches in the mouth and on the tongue
Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.
Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.
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ketoconazole
30/06/10
Generic Name: ketoconazole (KEE toe KON a zole)
Brand Names: Nizoral
What is ketoconazole?
Ketoconazole is an antifungal antibiotic.
Ketoconazole is used to treat infections caused by fungus, which can invade any part of the body including the mouth, throat, esophagus, lungs, bladder, or skin.
Ketoconazole may also be used for other purposes not listed in this medication guide.
What is the most important information I should know about ketoconazole?
You should not use this medication if you are allergic to ketoconazole, or if you are also taking triazolam (Halcion).
Before taking ketoconazole, tell your doctor if you have liver disease, kidney disease, a heart rhythm disorder, decreased stomach acid (achlorhydria), or a history of “Long QT syndrome.”
Take this medication for the entire length of time prescribed by your doctor. Your symptoms may get better before the infection is completely treated. Ketoconazole will not treat a viral infection such as the common cold or flu.
Avoid taking antacids or stomach acid reducers (Tagamet, Pepcid, Axid, Zantac, and others) for at least 2 hours after you have taken your dose of ketoconazole. These medications can make it harder for the ketoconazole tablet to dissolve in your stomach.
Avoid drinking alcohol. It may cause unpleasant side effects while you are taking ketoconazole.
What should I discuss with my healthcare provider before taking ketoconazole?
You should not use this medication if you are allergic to ketoconazole, or if you are also taking triazolam (Halcion).
If you have any of these other conditions, you may need a dose adjustment or special tests to safely take ketoconazole:
-
decreased stomach acid (achlorhydria);
-
liver disease;
-
kidney disease;
-
a heart rhythm disorder; or
-
a personal or family history of “Long QT syndrome.”
FDA pregnancy category C. It is not known whether ketoconazole is harmful to an unborn baby. Before you take this medication, tell your doctor if you are pregnant or plan to become pregnant during treatment. Ketoconazole may pass into breast milk and could harm a nursing baby. Do not use this medication without telling your doctor if you are breast-feeding a baby.
How should I take ketoconazole?
Take this medication exactly as it was prescribed for you. Do not take the medication in larger amounts, or take it for longer than recommended by your doctor. Follow the directions on your prescription label.
Ketoconazole works best if you take it with food. Take this medication for the entire length of time prescribed by your doctor. Your symptoms may get better before the infection is completely treated. Ketoconazole will not treat a viral infection such as the common cold or flu.
To be sure this medication is not causing harmful effects, your liver function may need to be checked with blood tests on a regular basis. Do not miss any scheduled appointments.
Store ketoconazole at room temperature away from moisture and heat.
See also: Ketoconazole dosage in more detail
What happens if I miss a dose?
Take the missed dose as soon as you remember. If it is almost time for your next dose, skip the missed dose and take the medicine at your next regularly scheduled time. Do not take extra medicine to make up the missed dose.
What happens if I overdose?
Seek emergency medical attention if you think you have used too much of this medicine. Symptoms of a ketoconazole overdose are not known.
What should I avoid while taking ketoconazole?
Avoid taking antacids or stomach acid reducers (Tagamet, Pepcid, Axid, Zantac, and others) for at least 2 hours after you have taken your dose of ketoconazole. These medications can make it harder for the ketoconazole tablet to dissolve in your stomach.
Avoid drinking alcohol. It may cause unpleasant side effects while you are taking ketoconazole.
Ketoconazole side effects
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat. Call your doctor at once if you have any of these serious side effects:
-
dizziness, fainting, fast or pounding heartbeat;
-
easy bruising or bleeding, unusual weakness;
-
numbness or tingly feeling;
-
severe depression, confusion, or thoughts of hurting yourself; or
-
nausea, stomach pain, low fever, loss of appetite, weakness, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes).
Less serious side effects may include:
-
mild nausea, vomiting, or stomach pain;
-
mild itching or skin rash;
-
headache;
-
dizziness;
-
breast swelling; or
-
impotence or loss of interest in sex.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
Ketoconazole Dosing Information
Usual Adult Dose for Oral Thrush:
Initial dose: 200 mg orally once a day.
May be increased to 400 mg once a day for more severe or resistant infections. Treatment should be continued for 1-2 weeks.
Usual Adult Dose for Dermatophytosis:
Initial dose: 200 mg orally once a day.
May be increased to 400 mg once a day for more severe or resistant infections. Treatment should be continued for 4 weeks.
Usual Adult Dose for Blastomycosis:
Initial dose: 200 mg orally once a day.
May be increased to 400 mg once a day for more severe or resistant infections. Treatment should be continued for at least 6 months.
Usual Adult Dose for Coccidioidomycosis:
Initial dose: 200 mg orally once a day.
May be increased to 400 mg once a day for more severe or resistant infections. Treatment should be continued for at least 6 months.
Usual Adult Dose for Histoplasmosis:
Initial dose: 200 mg orally once a day.
May be increased to 400 mg once a day for more severe or resistant infections. Treatment should be continued for at least 6 months.
Usual Adult Dose for Paracoccidioidomycosis:
Initial dose: 200 mg orally once a day.
May be increased to 400 mg once a day for more severe or resistant infections. Treatment should be continued for at least 6 months.
Usual Adult Dose for Chronic Mucocutaneous Candidiasis:
Initial dose: 200 mg orally once a day.
May be increased to 400 mg once a day for more severe or resistant infections. Treatment should be continued for 3-12 months. Patients usually require maintenance therapy.
Usual Adult Dose for Esophageal Candidiasis:
Initial dose: 200 mg orally once a day.
May be increased to 400 mg once a day for more severe or resistant infections. Treatment should be continued for 2-3 weeks.
Usual Adult Dose for Onychomycosis — Fingernail:
Initial dose: 200 mg orally once a day.
May be increased to 400 mg once a day for more severe or resistant infections. Treatment should be continued for 6-12 months.
Usual Adult Dose for Onychomycosis — Toenail:
Initial dose: 200 mg orally once a day.
May be increased to 400 mg once a day for more severe or resistant infections. Treatment should be continued for 6-12 months.
Usual Adult Dose for Vaginal Candidiasis:
Initial dose: 200 mg orally once a day.
May be increased to 400 mg once a day for more severe or resistant infections. Treatment should be continued for approximately 1 to 2 weeks and until tests indicate the resolution of the infection.
What other drugs will affect ketoconazole?
Many drugs can interact with ketoconazole. Below is just a partial list. Tell your doctor if you are using:
-
acetaminophen (Tylenol);
-
cyclosporine (Gengraf, Sandimmune, Neoral);
-
clopidogrel (Plavix);
-
digoxin (digitalis, Lanoxin);
-
tacrolimus ((Prograf);
-
loratadine (Alavert, Claritin, Tavist ND);
-
methylprednisolone (Medrol);
-
phenytoin (Dilantin);
-
rifampin (Rifadin, Rifater, Rifamate, Rimactane);
-
diabetes medication you take by mouth;
-
a sedative such as midazolam (Versed);
-
a blood thinner such as warfarin (Coumadin);
-
cancer medications;
-
birth control pills or hormone replacement therapy;
-
methotrexate (Rheumatrex, Trexall);
-
cholesterol medications such as niacin (Advicor), atorvastatin (Lipitor), lovastatin (Altocor, Mevacor), simvastatin (Zocor), and others; or
-
medications to treat HIV or AIDS.
This list is not complete and there are many other drugs that can interact with ketoconazole. Tell your doctor about all the prescription and over-the-counter medications you use. This includes vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start using a new medication without telling your doctor.
Where can I get more information?
- Your pharmacist can provide more information about ketoconazole.
- Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.
- Every effort has been made to ensure that the information provided by Cerner Multum, Inc. (‘Multum’) is accurate, up-to-date, and complete, but no guarantee is made to that effect. Drug information contained herein may be time sensitive. Multum information has been compiled for use by healthcare practitioners and consumers in the United States and therefore Multum does not warrant that uses outside of the United States are appropriate, unless specifically indicated otherwise. Multum’s drug information does not endorse drugs, diagnose patients or recommend therapy. Multum’s drug information is an informational resource designed to assist licensed healthcare practitioners in caring for their patients and/or to serve consumers viewing this service as a supplement to, and not a substitute for, the expertise, skill, knowledge and judgment of healthcare practitioners. The absence of a warning for a given drug or drug combination in no way should be construed to indicate that the drug or drug combination is safe, effective or appropriate for any given patient. Multum does not assume any responsibility for any aspect of healthcare administered with the aid of information Multum provides. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the drugs you are taking, check with your doctor, nurse or pharmacist.
Copyright 1996-2006 Cerner Multum, Inc. Version: 9.01. Revision Date: 11/18/2009 10:22:12 AM.
ketoconazole (Topical route)
30/06/10
kee-toe-KON-a-zole
When used orally, ketoconazole has been associated with hepatic toxicity, including some fatalities. Patients receiving this drug should be informed by the physician of the risk and should be closely monitored.
Coadministration of terfenadine with ketoconazole tablets is contraindicated. Rare cases of serious cardiovascular adverse events, including death, ventricular tachycardia and torsades de pointes have been observed in patients taking ketoconazole tablets concomitantly with terfenadine, due to increased terfenadine concentrations induced by ketoconazole tablets.
Pharmacokinetic data indicate that oral ketoconazole inhibits the metabolism of astemizole, resulting in elevated plasma levels of astemizole and its active metabolite desmethylastemizole which may prolong QT intervals. Coadministration of astemizole with ketoconazole tablets is therefore contraindicated.
Coadministration of cisapride with ketoconazole is contraindicated. Serious cardiovascular adverse events including ventricular tachycardia, ventricular fibrillation and torsades de pointes have occurred in patients taking ketoconazole concomitantly with cisapride .
When used orally, ketoconazole has been associated with hepatic toxicity, including some fatalities. Patients receiving this drug should be informed by the physician of the risk and should be closely monitored. Coadministration of ketoconazole with terfenadine, astemizole, and cisapride is contraindicated due to the inhibition of metabolism of these drugs by ketoconazole. Coadministration of these drugs with ketoconazole may result in serious cardiovascular events, including death, ventricular tachycardia, ventricular fibrillation, torsades de pointes, and prolongation of the QT interval .
Commonly used brand name(s):
In the U.S.
- Extina
- Nizoral
- Nizoral A-D
- Xolegel
In Canada
- Ketoderm
Available Dosage Forms:
- Shampoo
- Foam
- Gel/Jelly
- Solution
- Cream
Therapeutic Class: Antifungal
Chemical Class: Imidazole
Uses For ketoconazole
Ketoconazole is used to treat infections caused by a fungus or yeast. It works by killing the fungus or yeast or preventing its growth.
Ketoconazole cream is used to treat:
- Athlete’s foot (tinea pedis; ringworm of the foot);
- Ringworm of the body (tinea corporis);
- Ringworm of the groin (tinea cruris; jock itch);
- Seborrheic dermatitis;
- “Sun fungus” (tinea versicolor; pityriasis versicolor); and
- Yeast infection of the skin (cutaneous candidiasis).
Ketoconazole gel or foam is used to treat seborrheic dermatitis (scaly areas on your skin or scalp).
Ketoconazole 1% shampoo is used to treat dandruff.
Ketoconazole 2% shampoo is used to treat “sun fungus” (tinea versicolor; pityriasis versicolor).
ketoconazole may also be used for other fungus infections of the skin as determined by your doctor.
Most forms of ketoconazole are available only with your doctor’s prescription. Some forms are available without a prescription. However, your doctor may have special instructions on the proper use for your medical condition.
Before Using ketoconazole
In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For ketoconazole, the following should be considered:
Allergies
Tell your doctor if you have ever had any unusual or allergic reaction to ketoconazole or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.
Pediatric
Appropriate studies have not been performed on the relationship of age to the effects of topical ketoconazole in children below the age of 12 years. Safety and efficacy have not been established.
Geriatric
Appropriate studies performed to date have not demonstrated geriatric-specific problems that would limit the usefulness of topical ketoconazole in the elderly. However, some elderly patients may be more sensitive to the adverse effects of ketoconazole.
Pregnancy
| Pregnancy Category | Explanation | |
|---|---|---|
| All Trimesters | C | Animal studies have shown an adverse effect and there are no adequate studies in pregnant women OR no animal studies have been conducted and there are no adequate studies in pregnant women. |
Breast Feeding
There are no adequate studies in women for determining infant risk when using this medication during breastfeeding. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.
Interactions with Medicines
Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. Tell your healthcare professional if you are taking any other prescription or nonprescription (over-the-counter [OTC]) medicine.
Interactions with Food/Tobacco/Alcohol
Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. Discuss with your healthcare professional the use of your medicine with food, alcohol, or tobacco.
Proper Use of ketoconazole
ketoconazole should be used only on the skin. Do not get it in your eyes, nose, mouth, or vagina.
For patients using the cream form of ketoconazole:
- Apply enough ketoconazole cream to cover the affected and surrounding skin areas, and rub in gently.
- To help clear up your infection completely, it is very important that you keep using ketoconazole cream for the full time of treatment, even if your symptoms begin to clear up after a few days. Since fungus or yeast infections may be very slow to clear up, you may have to continue using ketoconazole every day for up to several weeks. If you stop using ketoconazole too soon, your symptoms may return. Do not miss any doses.
For patients using the foam form of ketoconazole:
- Wash your hands before and after using ketoconazole.
- Do not spray the foam directly on your hand because it will begin to melt as soon as it touches your skin. Instead, spray the foam into the cap of the medicine can or other cool surface. Then dip your fingertips into the foam to pick up small amounts of the medicine, and apply to the affected skin areas. Gently massage the foam into your skin until it disappears.
- If you are treating skin areas with hair, such as your scalp, move any hair away so the foam can be applied directly to the affected skin.
- ketoconazole is flammable. Do not use it near heat, an open flame, or while smoking. Do not puncture, break, or burn the medicine can.
For patients using the gel form of ketoconazole:
- Wash your hands before and after using ketoconazole.
- Apply enough ketoconazole gel to cover the affected and surrounding skin areas, and rub in gently with your fingertips.
- After applying ketoconazole, do not wash the affected area for at least 3 hours.
- Cosmetics (makeup or sunscreens) may be used on the treated skin areas no sooner than 20 minutes after ketoconazole is applied.
- ketoconazole may be flammable. Do not use it near heat, an open flame, or while smoking.
For patients using the 1% shampoo form of ketoconazole:
- Wet your hair and scalp well with water.
- Apply enough shampoo to work up a good lather and gently massage it over your entire scalp.
- Rinse your hair and scalp with warm water.
- Repeat application.
- Rinse your hair and scalp well with warm water, and dry your hair.
For patients using the 2% shampoo form of ketoconazole:
- Wet your hair and scalp well with water.
- Apply the shampoo to the skin of the affected area and a wide margin surrounding this area.
- Work up a good lather and leave it in place for 5 minutes.
- Rinse your hair and scalp well with warm water, and dry your hair.
Dosing
The dose of ketoconazole will be different for different patients. Follow your doctor’s orders or the directions on the label. The following information includes only the average doses of ketoconazole. If your dose is different, do not change it unless your doctor tells you to do so.
The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.
- For cream dosage form:
- For cutaneous candidiasis, tinea corporis, tinea cruris, tinea pedis, or pityriasis versicolor:
- Adults—Apply once a day to the affected skin and surrounding area.
- Children—Use and dose must be determined by your doctor.
- For seborrheic dermatitis:
- Adults—Apply two times a day to the affected skin and surrounding area.
- Children—Use and dose must be determined by your doctor.
- For cutaneous candidiasis, tinea corporis, tinea cruris, tinea pedis, or pityriasis versicolor:
- For foam dosage form:
- For seborrheic dermatitis:
- Adults—Apply two times a day to the affected skin and surrounding area for 4 weeks.
- Children—Use and dose must be determined by your doctor.
- For seborrheic dermatitis:
- For gel dosage form:
- For seborrheic dermatitis:
- Adults—Apply once a day to the affected skin and surrounding area for 2 weeks.
- Children—Use and dose must be determined by your doctor.
- For seborrheic dermatitis:
- For 1% shampoo dosage form:
- For dandruff:
- Adults—Use every 3 or 4 days for up to 8 weeks. Then use only as needed to keep dandruff under control.
- Children—Use and dose must be determined by your doctor.
- For dandruff:
- For 2% shampoo dosage form:
- For pityriasis versicolor:
- Adults—Use once.
- Children—Use and dose must be determined by your doctor.
- For pityriasis versicolor:
Missed Dose
If you miss a dose of ketoconazole, apply it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule.
Storage
Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing.
Keep out of the reach of children.
Do not keep outdated medicine or medicine no longer needed.
Ask your healthcare professional how you should dispose of any medicine you do not use.
Precautions While Using ketoconazole
It is very important that your doctor check your progress at regular visits. This will allow your doctor to see if the medicine is working properly and check you for any problems or unwanted effects that may be caused by ketoconazole.
Do not use ketoconazole for a skin problem that has not been checked by your doctor.
If your skin problem does not improve within 2 weeks for cutaneous candidiasis, pityriasis versicolor, tinea corporis, or tinea cruris; or 4 weeks for seborrheic dermatitis; or 4 to 6 weeks for tinea pedis, or if it becomes worse, check with your doctor.
Good health habits are also required for patients using the cream form of ketoconazole to help clear up your infection completely and to help make sure it does not return.
For patients using the cream for athlete’s foot (tinea pedis; ringworm of the foot), the following instructions will help keep the feet cool and dry:
- Avoid wearing socks made from wool or synthetic materials (e.g., rayon or nylon). Instead, wear clean, cotton socks and change them daily or more often if your feet sweat a lot.
- Wear sandals or well-ventilated shoes (e.g., shoes with holes).
- Use a bland, absorbent powder (e.g., talcum powder) or an antifungal powder between the toes, on the feet, and in socks and shoes one or two times a day. It is best to use the powder between the times you use the cream.
- If you have any questions about these instructions, check with your doctor.
For patients using the cream for ringworm of the groin (tinea cruris; jock itch), the following instructions will help reduce chafing and irritation and will also help keep the groin area cool and dry:
- Avoid wearing underwear that is tight-fitting or made from synthetic materials (e.g., rayon or nylon). Instead, wear loose-fitting, cotton underwear.
- Use a bland, absorbent powder (e.g., talcum powder) or an antifungal powder on the skin. It is best to use the powder between the times you use ketoconazole cream.
- If you have any questions about these instructions, check with your doctor.
The foam form of ketoconazole may make your skin more sensitive to sunlight. Use a sunscreen when you are outdoors. Avoid sunlamps and tanning beds.
ketoconazole may cause a serious type of allergic reaction called anaphylaxis. Anaphylaxis can be life-threatening and requires immediate medical attention. Call your doctor right away if you have a rash; itching; hoarseness; trouble breathing; trouble swallowing; or any swelling of your hands, face, or mouth while you are using ketoconazole.
Tell your doctor if you have the following symptoms while using the ketoconazole 2% shampoo: hair discoloration, abnormal hair texture, removal of the curl from permanently waved hair, hair loss, itching, burning sensation of the skin, or blistering, peeling, or redness of the skin.
ketoconazole Side Effects
Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor immediately if any of the following side effects occur:
Less common—For cream, shampoo, foam, or gel
- Itching, stinging, burning, or irritation not present before use of ketoconazole
Rare—For cream, foam, or gel
- Acne
- bleeding from sore in the mouth
- burning, crawling, itching, numbness, prickling, “pins and needles”, or tingling feelings
- discoloration of the fingernails or toenails
- dizziness
- eye dryness, irritation, or swelling
- red rash with watery, yellow-colored, or pus filled blisters with or without thick yellow to honey-colored crusts
- skin dryness, pain, rash, redness, or swelling
- sore in the mouth or on the gums
- swelling of the face
Rare—For shampoo
- Hair loss and irritation
Incidence not known—For shampoo
- Blistering, burning, crusting, dryness, or flaking of the skin
- burning sensation of the skin
- burning, itching, redness, skin rash, swelling, or soreness at the application site
- discoloration of the hair
- dry skin
- fast heartbeat
- fever
- hives
- hoarseness
- irritation
- itching, scaling, severe redness, or soreness of the skin
- joint pain, stiffness, or swelling
- rash
- shortness of breath
- swelling of the eyelids, face, lips, hands, or feet
- thinning of the hair
- tightness in the chest
- troubled breathing or swallowing
- wheezing
Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:
Less common—For shampoo or gel
- Dryness or oiliness of the hair and scalp
- headache
Rare—For shampoo
- Abnormal hair texture
- mild dryness of the skin
- scalp pustules
Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.
Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.
The information contained in the Thomson Reuters Micromedex products as delivered by Drugs.com is intended as an educational aid only. It is not intended as medical advice for individual conditions or treatment. It is not a substitute for a medical exam, nor does it replace the need for services provided by medical professionals. Talk to your doctor, nurse or pharmacist before taking any prescription or over the counter drugs (including any herbal medicines or supplements) or following any treatment or regimen. Only your doctor, nurse, or pharmacist can provide you with advice on what is safe and effective for you.
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ketoconazole (Oral route)
30/06/10
kee-toe-KON-a-zole
When used orally, ketoconazole has been associated with hepatic toxicity, including some fatalities. Patients receiving this drug should be informed by the physician of the risk and should be closely monitored.
Coadministration of terfenadine with ketoconazole tablets is contraindicated. Rare cases of serious cardiovascular adverse events, including death, ventricular tachycardia and torsades de pointes have been observed in patients taking ketoconazole tablets concomitantly with terfenadine, due to increased terfenadine concentrations induced by ketoconazole tablets.
Pharmacokinetic data indicate that oral ketoconazole inhibits the metabolism of astemizole, resulting in elevated plasma levels of astemizole and its active metabolite desmethylastemizole which may prolong QT intervals. Coadministration of astemizole with ketoconazole tablets is therefore contraindicated.
Coadministration of cisapride with ketoconazole is contraindicated. Serious cardiovascular adverse events including ventricular tachycardia, ventricular fibrillation and torsades de pointes have occurred in patients taking ketoconazole concomitantly with cisapride .
When used orally, ketoconazole has been associated with hepatic toxicity, including some fatalities. Patients receiving this drug should be informed by the physician of the risk and should be closely monitored. Coadministration of ketoconazole with terfenadine, astemizole, and cisapride is contraindicated due to the inhibition of metabolism of these drugs by ketoconazole. Coadministration of these drugs with ketoconazole may result in serious cardiovascular events, including death, ventricular tachycardia, ventricular fibrillation, torsades de pointes, and prolongation of the QT interval .
Commonly used brand name(s):
In the U.S.
- Nizoral
Available Dosage Forms:
- Tablet
Therapeutic Class: Antifungal
Chemical Class: Imidazole
Uses For ketoconazole
Ketoconazole is used to treat serious fungal or yeast infections, such as candidiasis (thrush, oral thrush), blastomycosis (Gilchrist’s disease), coccidioidomycosis (Valley fever, San Joaquin Valley fever), histoplasmosis (Darling’s disease), chromoblastomycosis (chromomycosis), or paracoccidioidomycosis (South American blastomycosis, Lutz-Splendore-Almeida disease). ketoconazole works by killing the fungus or yeast, or preventing its growth .
Ketoconazole is also used to treat parasitic fungal infections on the skin (such as athlete’s foot or ringworm) that cannot be treated with topical medicine or griseofulvin, or for patients who cannot take griseofulvin .
ketoconazole is available only with your doctor’s prescription .
Before Using ketoconazole
In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For ketoconazole, the following should be considered:
Allergies
Tell your doctor if you have ever had any unusual or allergic reaction to ketoconazole or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.
Pediatric
Appropriate studies have not been performed on the relationship of age to the effects of ketoconazole in children below 2 years of age. Safety and efficacy have not been established .
Geriatric
No information is available on the relationship of age to the effects of ketoconazole in geriatric patients .
Pregnancy
| Pregnancy Category | Explanation | |
|---|---|---|
| All Trimesters | C | Animal studies have shown an adverse effect and there are no adequate studies in pregnant women OR no animal studies have been conducted and there are no adequate studies in pregnant women. |
Breast Feeding
There are no adequate studies in women for determining infant risk when using this medication during breastfeeding. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.
Interactions with Medicines
Using ketoconazole with any of the following medicines is not recommended. Your doctor may decide not to treat you with this medication or change some of the other medicines you take.
- Alfuzosin
- Alprazolam
- Astemizole
- Cisapride
- Conivaptan
- Dihydroergotamine
- Dofetilide
- Dronedarone
- Eplerenone
- Ergoloid Mesylates
- Ergonovine
- Ergotamine
- Methylergonovine
- Methysergide
- Pimozide
- Ranolazine
- Silodosin
- Terfenadine
- Tolvaptan
- Triazolam
Using ketoconazole with any of the following medicines is usually not recommended, but may be required in some cases. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.
- Amiodarone
- Aprepitant
- Atorvastatin
- Bretylium
- Cerivastatin
- Clopidogrel
- Colchicine
- Dasatinib
- Erythromycin
- Etravirine
- Everolimus
- Fentanyl
- Fluticasone
- Ibutilide
- Iloperidone
- Irinotecan
- Ixabepilone
- Lapatinib
- Levomethadyl
- Lovastatin
- Mefloquine
- Midazolam
- Nilotinib
- Pazopanib
- Romidepsin
- Salmeterol
- Simvastatin
- Sirolimus
- Sotalol
- Sunitinib
- Tadalafil
- Tamsulosin
- Temsirolimus
- Topotecan
Using ketoconazole with any of the following medicines may cause an increased risk of certain side effects, but using both drugs may be the best treatment for you. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.
- Acenocoumarol
- Aliskiren
- Almotriptan
- Alosetron
- Amlodipine
- Amprenavir
- Anisindione
- Aripiprazole
- Bexarotene
- Bortezomib
- Bosentan
- Budesonide
- Chlordiazepoxide
- Cilostazol
- Cinacalcet
- Conjugated Estrogens
- Cyclosporine
- Darifenacin
- Darunavir
- Delavirdine
- Dicumarol
- Didanosine
- Dutasteride
- Efavirenz
- Eletriptan
- Erlotinib
- Escitalopram
- Esterified Estrogens
- Estradiol
- Estriol
- Estrone
- Estropipate
- Eszopiclone
- Felodipine
- Fesoterodine
- Fosamprenavir
- Fosaprepitant
- Galantamine
- Gefitinib
- Imatinib
- Indinavir
- Isoniazid
- Isradipine
- Lopinavir
- Maraviroc
- Methylprednisolone
- Mometasone
- Nevirapine
- Nicardipine
- Nifedipine
- Nisoldipine
- Oxybutynin
- Paricalcitol
- Phenprocoumon
- Pioglitazone
- Praziquantel
- Prednisone
- Quetiapine
- Quinidine
- Rabeprazole
- Ramelteon
- Reboxetine
- Repaglinide
- Rifampin
- Rifapentine
- Ritonavir
- Saquinavir
- Sildenafil
- Solifenacin
- Tacrolimus
- Telithromycin
- Tolbutamide
- Tolterodine
- Trazodone
- Tretinoin
- Trimetrexate
- Valdecoxib
- Warfarin
- Zolpidem
Interactions with Food/Tobacco/Alcohol
Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.
Using ketoconazole with any of the following is usually not recommended, but may be unavoidable in some cases. If used together, your doctor may change the dose or how often you use ketoconazole, or give you special instructions about the use of food, alcohol, or tobacco.
- Ethanol
Other Medical Problems
The presence of other medical problems may affect the use of ketoconazole. Make sure you tell your doctor if you have any other medical problems, especially:
- Achlorhydria (absence of stomach acid)—May not be absorbed from the stomach in patients with this condition .
- Liver disease—Use with caution. May make this condition worse .
Proper Use of ketoconazole
Keep using ketoconazole for the full treatment time, even if you feel better after the first few doses. Your infection may not clear up if you stop using the medicine too soon .
Dosing
The dose of ketoconazole will be different for different patients. Follow your doctor’s orders or the directions on the label. The following information includes only the average doses of ketoconazole. If your dose is different, do not change it unless your doctor tells you to do so.
The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.
- For oral dosage form (tablets):
- For fungal infections:
- Adults—At first, 200 milligrams (mg) once a day. Your doctor may increase your dose if needed.
- Children over 2 years of age—Dose is based on body weight and must be determined by your doctor.
- Children up to 2 years of age—Use and dose must be determined by your doctor .
- For fungal infections:
Missed Dose
If you miss a dose of ketoconazole, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not double doses.
Storage
Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing.
Keep out of the reach of children.
Do not keep outdated medicine or medicine no longer needed.
Ask your healthcare professional how you should dispose of any medicine you do not use.
Precautions While Using ketoconazole
It is very important that your doctor check your progress at regular visits to make sure ketoconazole is working properly. Blood tests may be needed to check for unwanted effects .
Ketoconazole should not be taken with astemizole (e.g., Hismanal), cisapride (e.g., Propulsid), or terfenadine (e.g., Seldane). Doing so may increase the risk of serious side effects that affect the heart .
Liver problems may occur while you are taking ketoconazole. Check with your doctor right away if you are having more than one of these symptoms: abdominal pain or tenderness; clay-colored stools; dark urine; decreased appetite; fever; headache; itching; loss of appetite; nausea and vomiting; skin rash; swelling of the feet or lower legs; unusual tiredness or weakness; or yellow eyes or skin .
If your symptoms do not improve, or if they become worse, check with your doctor. You may need to take ketoconazole for several months before your infection gets better .
ketoconazole Side Effects
Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor immediately if any of the following side effects occur:
Rare
- Back, leg, or stomach pains
- black, tarry stools
- bleeding gums
- blood in the urine or stools
- blurred vision
- burning, crawling, itching, numbness, prickling, “pins and needles,” or tingling feelings
- change in color vision
- change in the ability to see colors, especially blue or yellow
- chest pain
- chills
- confusion
- cough
- dark urine
- difficulty breathing
- difficulty seeing at night
- difficulty swallowing
- dizziness
- fast heartbeat
- fever
- general body swelling
- headache
- hives
- hoarseness
- increased sensitivity of the eyes to sunlight
- irritation
- itching
- joint pain, stiffness or swelling
- light-colored stools
- loss of appetite
- mood or mental changes
- nausea or vomiting, severe
- nosebleeds
- painful or difficult urination
- pale skin
- pinpoint red spots on the skin
- puffiness or swelling of the eyelids or around the eyes, face, lips or tongue
- redness of the skin
- shortness of breath
- skin rash
- sore throat
- sores, ulcers, or white spots on the lips or in the mouth
- swelling of the eyelids, face, lips, hands, or feet
- swollen glands
- tightness in the chest
- trouble sleeping
- troubled breathing or swallowing
- unusual bleeding or bruising
- unusual tiredness or weakness
- vision changes
- wheezing
- yellow eyes or skin
Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:
Rare
- Change in number of sperm and their ability to move
- decreased interest in sexual intercourse
- diarrhea
- hair loss or thinning of hair
- inability to have or keep an erection
- loss in sexual ability, desire, drive, or performance
- sleepiness or unusual drowsiness
- swelling of the breasts or breast soreness for both female and male
Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.
Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.
The information contained in the Thomson Reuters Micromedex products as delivered by Drugs.com is intended as an educational aid only. It is not intended as medical advice for individual conditions or treatment. It is not a substitute for a medical exam, nor does it replace the need for services provided by medical professionals. Talk to your doctor, nurse or pharmacist before taking any prescription or over the counter drugs (including any herbal medicines or supplements) or following any treatment or regimen. Only your doctor, nurse, or pharmacist can provide you with advice on what is safe and effective for you.
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Ketamine Hydrochloride
30/06/10
Pronunciation: (KEE-ta-meen HYE-droe-KLOR-ide)
Class: General anesthetic
Trade Names:
Ketalar
- Injection, solution 10 mg/mL
- Injection, solution 50 mg/mL
- Injection, solution 100 mg/mL
Trade Names:
Ketamine
- Injection, solution 10 mg/mL
- Injection, solution 50 mg/mL
- Injection, solution 100 mg/mL
Pharmacology
Produces rapid-acting anesthetic state with profound analgesia, normal pharyngeal-laryngeal reflexes, normal or slightly enhanced skeletal muscle tone, cardiovascular and respiratory stimulation, and, occasionally, transient and minimal respiratory depression.
Pharmacokinetics
Absorption
Ketamine is rapidly absorbed. Mean C max is 0.75 mcg/mL. T max is 1 h.
Distribution
Distribution half-life is approximately 10 to 15 min.
Metabolism
Undergoes N-dealkylation, hydroxylation of cyclohexone ring, conjugation with glucuronic acid, and dehydration of the hydroxylated metabolites to form the cyclohexene derivative. The metabolite is about one-third as active as ketamine.
Elimination
The beta phase half-life of ketamine is 2.5 h. Approximately 91% is excreted in urine and 3% in feces.
Onset
Onset is 30 sec (IV) and 3 to 4 min (IM).
Duration
Duration is 5 to 10 min (IV) and 12 to 25 min (IM).
Indications and Usage
Diagnostic and surgical procedures that do not require skeletal muscle relaxation; induction of anesthesia; supplementation of low-potency agents, such as nitrous oxide.
Unlabeled Uses
Prevention of anesthesia-induced shivering.
Contraindications
Patients in whom significant BP elevation would be a serious hazard; hypersensitivity to the drug.
Dosage and Administration
Induction of Anesthesia
Adults and Children 16 yr of age and older
IV Initial: 1 to 4.5 mg/kg via slow infusion (over 60 sec); usual dose for 5- to 10-min anesthesia: 2 mg/kg. Alternatively, 1 to 2 mg/kg at a rate of 0.5 mg/kg/min, augmented with diazepam IV 2 to 5 mg. Maintenance: One-half to full induction dose, repeated as needed. Alternatively, adults induced with ketamine augmented with IV diazepam may receive 0.1 to 0.5 mg/min by slow microdrip infusion, augmented with diazepam 2 to 5 mg IV as needed. IM Initial: 6.5 to 13 mg/kg. Maintenance: One-half to full induction dose, repeated as needed.
General Advice
- The 100 mg/mL concentration should not be injected IV without proper dilution. It is recommended that the drug be diluted with an equal volume of sterile water for injection, isotonic sodium chloride solution, or dextrose 5% in water.
- Because of rapid induction following the initial IV injection, the patient should be in a supported position during administration.
- Administer IV slowly (over a period of 60 sec). More rapid administration may result in respiratory depression and enhanced pressor response.
- To prepare a dilute solution containing 1 mg/mL, transfer 10 mL (50 mg/mL concentration) or 5 mL (100 mg/mL concentration) to 500 mL of dextrose 5% injection or sodium chloride 0.9% injection and mix well. If fluid restriction is required, add ketamine as described previously to a 250 mL infusion to provide a final concentration of 2 mg/mL.
- Ketamine 10 mg/mL is not recommended for dilution.
- Ketamine is physically incompatible with diazepam and barbiturates.
- Give atropine, scopolamine, or another drying agent at an appropriate interval prior to induction.
Storage/Stability
Store vials at controlled room temperature (68° to 77°F). Protect from light.
Drug Interactions
Halothane
Decreased cardiac output, BP, and pulse.
Tubocurarine and other nondepolarizing muscle relaxants
Increased neuromuscular effects, resulting in prolonged respiratory depression.
Laboratory Test Interactions
None well documented.
Adverse Reactions
Cardiovascular
Arrhythmia, bradycardia, elevated blood pressure and heart rate, hypotension.
CNS
Enhanced skeletal muscle tone manifested by tonic and clonic movement.
Emergence reaction
Confusion, delirium, excitement, hallucinations, irrational behavior, pleasant dream-like state, vivid imagery.
Dermatologic
Morbilliform rash, transient erythema.
EENT
Diplopia, increased intraocular pressure, nystagmus.
GI
Anorexia, nausea, vomiting.
Local
Local pain and exanthema at injection site.
Respiratory
Apnea after rapid injection, laryngospasm, other airway obstruction, respiratory stimulation, severe respiratory depression.
Precautions
WarningsEmergence reactions Emergence reactions occur in approximately 12% of patients. The incidence is least frequent in elderly (older than 65 yr of age) patients and also less frequent with IM use. Psychological manifestations Severity varies between pleasant dream-like states, vivid imagery, hallucinations, and emergence delirium, sometimes accompanied by confusion, excitement, and irrational behavior. The duration is ordinarily a few hours; however, recurrences have been seen up to 24 h postoperatively. No residual psychological effects are known. The incidence may be reduced by using lower dosages with IV diazepam. These reactions may be reduced if verbal, tactile, and visual patient stimulation is minimized during recovery. This does not preclude monitoring vital signs. Management To terminate a severe emergence reaction, a small hypnotic dose of a short-acting or ultra short-acting barbiturate may be required. When used on an outpatient basis, do not release patient until recovery from anesthesia is complete. Patients should be accompanied by an adult. |
MonitorContinually monitor cardiac function during procedures in patients with hypertension or cardiac decompensation aseptically. |
Pregnancy
Category B .
Lactation
Undetermined.
Children
Safety and efficacy in children younger than 16 yr of age have not been established.
Elderly
Use with caution, usually starting at the low end of the dosing range.
Alcohol
Use with caution in chronic alcoholic and acutely alcohol-intoxicated patients.
Cerebrospinal fluid pressure
Cerebrospinal fluid pressure increase has been reported following administration.
Hypertension or cardiac decompensation
In patients with these conditions, monitor function continuously during procedure.
Respiratory effects
May occur with overdosage or too rapid a rate of administration.
Respiratory surgery/diagnostic procedures
Do not use in surgery or diagnostic procedures of the pharynx, larynx, or bronchial tree. Do not administer ketamine alone because pharyngeal and laryngeal reflexes are usually active. Muscle relaxants, with proper attention to respiration, may be required.
Visceral pain
In surgical procedures involving visceral pain pathways, supplement with an agent that obtunds visceral pain.
Overdosage
Symptoms
Respiratory depression.
Patient Information
- Advise patient that neurologic effects may persist for 24 h after anesthesia. Advise patient to use caution during this period while driving or performing other tasks requiring mental alertness.
Copyright © 2009 Wolters Kluwer Health.
Ketamine Injection
30/06/10
Generic Name: ketamine hydrochloride
Dosage Form: injection
KETAMINE HYDROCHLORIDE
INJECTION, USP
Rx ONLY
SPECIAL NOTE
EMERGENCE REACTIONS HAVE OCCURRED IN APPROXIMATELY 12 PERCENT OF PATIENTS.
THE PSYCHOLOGICAL MANIFESTATIONS VARY IN SEVERITY BETWEEN PLEASANT DREAM-LIKE STATES, VIVID IMAGINARY, HALLUCINATIONS, AND EMERGENCE DELIRIUM. IN SOME CASES THESE STATES HAVE BEEN ACCOMPANIED BY CONFUSION, EXCITEMENT, AND IRRATIONAL BEHAVIOR WHICH A FEW PATIENTS RECALL AS AN UNPLEASANT EXPERIENCE. THE DURATION ORDINARILY IS NO MORE THAN A FEW HOURS; IN A FEW CASES, HOWEVER, RECURRENCES HAVE TAKEN PLACE UP TO 24 HOURS POSTOPERATIVELY. NO RESIDUAL PSYCHOLOGICAL EFFECTS ARE KNOWN TO HAVE RESULTED FROM USE OF KETAMINE.
THE INCIDENCE OF THESE EMERGENCE PHENOMENA IS LEAST IN THE YOUNG (15 YEARS OF AGE OR LESS) AND ELDERLY (OVER 65 YEARS OF AGE) PATIENT. ALSO, THEY ARE LESS FREQUENT WHEN THE DRUG IS GIVEN INTRAMUSCULARLY AND THE INCIDENCE IS REDUCED AS EXPERIENCE WITH THE DRUG IS GAINED.
THE INCIDENCE OF PSYCHOLOGICAL MANIFESTATIONS DURING EMERGENCE, PARTICULARLY DREAM-LIKE OBSERVATIONS AND EMERGENCE DELIRIUM, MAY BE REDUCED BY USING LOWER RECOMMENDED DOSAGES OF KETAMINE IN CONJUNCTION WITH INTRAVENOUS DIAZEPAM DURING INDUCTION AND MAINTENANCE OF ANESTHESIA. (See DOSAGE AND ADMINISTRATION.) ALSO, THESE REACTIONS MAY BE REDUCED IF VERBAL, TACTILE AND VISUAL STIMULATION OF THE PATIENT IS MINIMIZED DURING THE RECOVERY PERIOD. THIS DOES NOT PRECLUDE THE MONITORING OF VITAL SIGNS.
IN ORDER TO TERMINATE A SEVERE EMERGENCE REACTION, THE USE OF A SMALL HYPNOTIC DOSE OF A SHORT-ACTING OR ULTRA SHORT-ACTING BARBITURATE MAY BE REQUIRED.
WHEN KETAMINE IS USED ON AN OUTPATIENT BASIS, THE PATIENT SHOULD NOT BE RELEASED UNTIL RECOVERY FROM ANESTHESIA IS COMPLETE AND THEN SHOULD BE ACCOMPANIED BY A RESPONSIBLE ADULT.
Ketamine Injection Description
Ketamine hydrochloride is a nonbarbiturate anesthetic chemically designated (±)-2-(o-Chlorophenyl)-2-(methylamino) cyclohexanone hydrochloride. It is formulated as a slightly acid (pH 3.5 to 5.5) sterile solution for intravenous or intramuscular injection in concentrations containing the equivalent of 50 mg ketamine base per milliliter and contains not more than 0.1 mg/mL benzethonium chloride added as a preservative. Ketamine hydrochloride has the following structural formula:

Molecular Formula: C13H16ClNO • HCl Molecular Weight: 274.19
Ketamine Injection – Clinical Pharmacology
Ketamine is a rapid-acting general anesthetic producing an anesthetic state characterized by profound analgesia, normal pharyngeal-laryngeal reflexes, normal or slightly enhanced skeletal muscle tone, cardiovascular and respiratory stimulation, and occasionally a transient and minimal respiratory depression.
A patent airway is maintained partly by virtue of unimpaired pharyngeal and laryngeal reflexes. (See WARNINGS and PRECAUTIONS.)
The biotransformation of ketamine includes N-dealkylation (metabolite I), hydroxylation of the cyclohexone ring (metabolites III and IV), conjugation with glucuronic acid and dehydration of the hydroxylated metabolites to form the cyclohexene derivative (metabolite II).
Following intravenous administration, the ketamine concentration has an initial slope (alpha phase) lasting about 45 minutes with a half-life of 10 to 15 minutes. This first phase corresponds clinically to the anesthetic effect of the drug. The anesthetic action is terminated by a combination of redistribution from the CNS to slower equilibrating peripheral tissues and by hepatic biotransformation to metabolite I. This metabolite is about 1/3 as active as ketamine in reducing halothane requirements (MAC) of the rat. The later half-life of ketamine (beta phase) is 2.5 hours.
The anesthetic state produced by ketamine has been termed “dissociative anesthesia” in that it appears to selectively interrupt association pathways of the brain before producing somesthetic sensory blockade. It may selectively depress the thalamoneocortical system before significantly obtunding the more ancient cerebral centers and pathways (reticular-activating and limbic systems).
Elevation of blood pressure begins shortly after injection, reaches a maximum within a few minutes and usually returns to preanesthetic values within 15 minutes after injection. In the majority of cases, the systolic and diastolic blood pressure peaks from 10% to 50% above preanesthetic levels shortly after induction of anesthesia, but the elevation can be higher or longer in individual cases (see CONTRAINDICATIONS).
Ketamine has a wide margin of safety; several instances of unintentional administration of overdoses of ketamine (up to ten times that usually required) have been followed by prolonged but complete recovery.
Ketamine has been studied in over 12,000 operative and diagnostic procedures, involving over 10,000 patients from 105 separate studies. During the course of these studies ketamine hydrochloride was administered as the sole agent, as induction for other general agents, or to supplement low-potency agents.
Specific areas of application have included the following:
- debridement, painful dressings, and skin grafting in burn patients, as well as other superficial surgical procedures.
- neurodiagnostic procedures such as pneumonencephalograms, ventriculograms, myelograms, and lumbar punctures. See also PRECAUTIONS concerning increased intracranial pressure.
- diagnostic and operative procedures of the eye, ear, nose and mouth, including dental extractions.
- diagnostic and operative procedures of the pharynx, larynx, or bronchial tree. NOTE: Muscle relaxants, with proper attention to respiration, may be required (see PRECAUTIONS).
- sigmoidoscopy and minor surgery of the anus and rectum, and circumcision.
- extraperitoneal procedures used in gynecology such as dilatation and curettage.
- orthopedic procedures such as closed reductions, manipulations, femoral pinning, amputations, and biopsies.
- as an anesthetic in poor-risk patients with depression of vital functions.
- in procedures where the intramuscular route of administration is preferred.
- in cardiac catheterization procedures.
In these studies, the anesthesia was rated either “excellent” or “good” by the anesthesiologist and the surgeon at 90% and 93%, respectively; rated “fair” at 6% and 4%, respectively; and rated “poor” at 4% and 3%, respectively. In a second method of evaluation, the anesthesia was rated “adequate” in at least 90% and “inadequate” in 10% or less of the procedures.
Indications and Usage for Ketamine Injection
Ketamine hydrochloride injection is indicated as the sole anesthetic agent for diagnostic and surgical procedures that do not require skeletal muscle relaxation. Ketamine hydrochloride injection is best suited for short procedures but it can be used, with additional doses, for longer procedures.
Ketamine hydrochloride injection is indicated for the induction of anesthesia prior to the administration of other general anesthetic agents.
Ketamine hydrochloride injection is indicated to supplement low-potency agents, such as nitrous oxide.
Specific areas of application are described in the CLINICAL PHARMACOLOGY section.
Contraindications
Ketamine is contraindicated in those in whom a significant elevation of blood pressure would constitute a serious hazard and in those who have shown hypersensitivity to the drug.
Warnings
Cardiac function should be continually monitored during the procedure in patients found to have hypertension or cardiac decompensation.
Postoperative confusional states may occur during the recovery period. (See SPECIAL NOTE.)
Respiratory depression may occur with overdosage or too rapid a rate of administration of ketamine, in which case supportive ventilation should be employed. Mechanical support of respiration is preferred to administration of analeptics.
Precautions
General
Ketamine should be used by or under the direction of physicians experienced in administering general anesthetics and in maintenance of an airway and in the control of respiration.
Because pharyngeal and laryngeal reflexes are usually active, ketamine should not be used alone in surgery or diagnostic procedures of the pharynx, larynx, or bronchial tree. Mechanical stimulation of the pharynx should be avoided, whenever possible, if ketamine is used alone. Muscle relaxants, with proper attention to respiration, may be required in both of these instances.
Resuscitative equipment should be ready for use.
The incidence of emergence reactions may be reduced if verbal and tactile stimulation of the patient is minimized during the recovery period. This does not preclude the monitoring of vital signs (see SPECIAL NOTE).
The intravenous dose should be administered over a period of 60 seconds. More rapid administration may result in respiratory depression or apnea and enhanced pressor response.
In surgical procedures involving visceral pain pathways, ketamine should be supplemented with an agent which obtunds visceral pain.
Use with caution in the chronic alcoholic and the acutely alcohol-intoxicated patient.
An increase in cerebrospinal fluid pressure has been reported following administration of ketamine hydrochloride. Use with extreme caution in patients with preanesthetic elevated cerebrospinal fluid pressure.
Information for Patients
As appropriate, especially in cases where early discharge is possible, the duration of ketamine and other drugs employed during the conduct of anesthesia should be considered. The patients should be cautioned that driving an automobile, operating hazardous machinery or engaging in hazardous activities should not be undertaken for 24 hours or more (depending upon the dosage of ketamine and consideration of other drugs employed) after anesthesia.
Drug Interactions
Prolonged recovery time may occur if barbiturates and/or narcotics are used concurrently with ketamine.
Ketamine is clinically compatible with the commonly used general and local anesthetic agents when an adequate respiratory exchange is maintained.
Usage in Pregnancy
Since the safe use in pregnancy, including obstetrics (either vaginal or abdominal delivery), has not been established, such use is not recommended (see ANIMAL PHARMACOLOGY AND TOXICOLOGY, Reproduction).
Pediatric Use
See DOSAGE AND ADMINISTRATION.
Geriatric Use
Clinical studies of ketamine did not include sufficient numbers of subjects aged 65 and over to determine whether they respond differently from younger subjects. Other reported clinical experience has not identified differences in responses between the elderly and younger patients. In general, dose selection for an elderly patient should be cautious, usually starting at the low end of the dosing range, reflecting the greater frequency of decreased hepatic, renal, or cardiac function, and of concomitant disease or other drug therapy.
Adverse Reactions
Cardiovascular
Blood pressure and pulse rate are frequently elevated following administration of ketamine alone. However hypotension and bradycardia have been observed. Arrhythmia has also occurred.
Respiration
Although respiration is frequently stimulated, severe depression of respiration or apnea may occur following rapid intravenous administration of high doses of ketamine. Laryngospasms and other forms of airway obstruction have occurred during ketamine anesthesia.
Eye
Diplopia and nystagmus have been noted following ketamine administration. It also may cause a slight elevation in intraocular pressure measurement.
Psychological
(See SPECIAL NOTE.)
Neurological
In some patients, enhanced skeletal muscle tone may be manifested by tonic and clonic movements sometimes resembling seizures (see DOSAGE AND ADMINISTRATION).
Gastrointestinal
Anorexia, nausea and vomiting have been observed; however, this is not usually severe and allows the great majority of patients to take liquids by mouth shortly after regaining consciousness (see DOSAGE AND ADMINISTRATION).
General
Anaphylaxis. Local pain and exanthema at the injection site have infrequently been reported. Transient erythema and/or morbilliform rash have also been reported.
Drug Abuse and Dependence
Ketamine has been reported being used as a drug of abuse. Reports suggest that ketamine produces a variety of symptoms including, but not limited to, flashbacks, hallucinations, dysphoria, anxiety, insomnia, or disorientaion. Ketamine dependence and tolerance may develop in individuals with a history of drug abuse or dependence. Therefore, ketamine should be prescribed and administered with caution.
Overdosage
Respiratory depression may occur with overdosage or too rapid a rate of administration of ketamine, in which case supportive ventilation should be employed. Mechanical support of respiration is preferred to administration of analeptics.
Ketamine Injection Dosage and Administration
Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration, whenever solution and container permit.
Note: Barbiturates and ketamine, being chemically incompatible because of precipitate formation, should not be injected from the same syringe.
If the ketamine dose is augmented with diazepam, the two drugs must be given separately. Do not mix ketamine hydrochloride and diazepam in syringe or infusion flask. For additional information on the use of diazepam, refer to the WARNINGS and DOSAGE AND ADMINISTRATION sections of the diazepam insert.
Preoperative Preparations
- While vomiting has been reported following ketamine administration, some airway protection may be afforded because of active laryngeal-pharyngeal reflexes. However, since aspiration may occur with ketamine and since protective reflexes may also be diminished by supplementary anesthetics and muscle relaxants, the possibility of aspiration must be considered. Ketamine is recommended for use in the patient whose stomach is not empty when, in the judgement of the practitioner, the benefits of the drug outweigh the possible risks.
- Atropine, scopolamine, or another drying agent should be given at an appropriate interval prior to induction.
Onset and Duration
Because of rapid induction following the initial intravenous injection, the patient should be in a supported position during administration.
The onset of action of ketamine is rapid; an intravenous dose of 2 mg/kg (1 mg/lb) of body weight usually produces surgical anesthesia within 30 seconds after injection, with the anesthetic effect usually lasting five to ten minutes. If a longer effect is desired, additional increments can be administered intravenously or intramuscularly to maintain anesthesia without producing significant cumulative effects.
Intramuscular doses, from experience primarily in children, in a range of 9 to 13 mg/kg (4 to 6 mg/lb) usually produce surgical anesthesia within 3 to 4 minutes following injection, with the anesthetic effect usually lasting 12 to 25 minutes.
Dosage
As with other general anesthetic agents, the individual response to ketamine is somewhat varied depending on the dose, route of administration, and age of patient, so that dosage recommendation cannot be absolutely fixed. The drug should be titrated against the patient’s requirements.
Induction
Intravenous Route: The initial dose of ketamine administered intravenously may range from 1 mg/kg to 4.5 mg/kg (0.5 to 2 mg/lb). The average amount required to produce five to ten minutes of surgical anesthesia has been 2 mg/kg (1 mg/lb).
Alternatively, in adult patients an induction dose of 1 mg to 2 mg/kg intravenous ketamine at a rate of 0.5 mg/kg/min may be used for induction of anesthesia. In addition, diazepam in 2 mg to 5 mg doses, administered in a separate syringe over 60 seconds, may be used. In most cases, 15 mg of intravenous diazepam or less will suffice. The incidence of psychological manifestations during emergence, particularly dream-like observations and emergence delirium, may be reduced by this induction dosage program.
Note: The 100 mg/mL concentration of ketamine should not be injected intravenously without proper dilution. It is recommended the drug be diluted with an equal volume of either Sterile Water for Injection, USP, Normal Saline, or 5% Dextrose in Water.
Rate of Administration: It is recommended that ketamine be administered slowly (over a period of 60 seconds). More rapid administration may result in respiratory depression and enhanced pressor response.
Intramuscular Route: The initial dose of ketamine administered intramuscularly may range from 6.5 to 13 mg/kg (3 to 6 mg/lb). A dose of 10 mg/kg (5 mg/lb) will usually produce 12 to 25 minutes of surgical anesthesia.
Maintenance of Anesthesia
The maintenance dose should be adjusted according to the patient’s anesthetic needs and whether an additional anesthetic agent is employed.
Increments of one-half to the full induction dose may be repeated as needed for maintenance of anesthesia. However, it should be noted that purposeless and tonic-clonic movements of extremities may occur during the course of anesthesia. These movements do not imply a light plane and are not indicative of the need for additional doses of the anesthetic.
It should be recognized that the larger the total dose of ketamine administered, the longer will be the time to complete recovery.
Adult patients induced with ketamine augmented with intravenous diazepam may be maintained on ketamine given by slow microdrip infusion technique at a dose of 0.1 to 0.5 mg/minute, augmented with diazepam 2 to 5 mg administered intravenously as needed. In many cases 20 mg or less of intravenous diazepam total for combined induction and maintenance will suffice. However, slightly more diazepam may be required depending on the nature and duration of the operation, physical status of the patient, and other factors. The incidence of psychological manifestations during emergence, particularly dream-like observations and emergence delirium, may be reduced by this maintenance dosage program.
Dilution: To prepare a dilute solution containing 1 mg of ketamine per mL, aseptically transfer 10 mL (50 mg per mL vial) to 500 mL of Dextrose Injection, 5% or Sodium Chloride Injection, 0.9% and mix well. The resultant solution will contain 1 mg of ketamine per mL.
The fluid requirements of the patient and duration of anesthesia must be considered when selecting the appropriate dilution of ketamine hydrochloride injection. If fluid restriction is required, ketamine hydrochloride injection can be added to a 250 mL infusion as described above to provide a ketamine concentration of 2 mg/mL.
Supplementary Agents
Ketamine is clinically compatible with the commonly used general and local anesthetic agents when an adequate respiratory exchange is maintained.
The regimen of a reduced dose of ketamine supplemented with diazepam can be used to produce balanced anesthesia by combination with other agents such as nitrous oxide and oxygen.
How is Ketamine Injection Supplied
Ketamine Hydrochloride Injection, USP is supplied as the hydrochloride in concentrations equivalent to ketamine base.
NDC # 55390-475-10 Each 10 mL vial contains 50 mg/mL – supplied in a carton of 10.
Color of solution may vary from colorless to very slightly yellowish and may darken upon prolonged exposure to light. This darkening does not affect potency. Do not use if a precipitate appears. Protect from light.
Store at 20° to 25°C (68° to 77°F). [See USP Controlled Room Temperature.]
ANIMAL PHARMACOLOGY AND TOXICOLOGY
Toxicity
The acute toxicity of ketamine has been studied in several species. In mature mice and rats, the intraperitoneal LD50 values are approximately 100 times the average human intravenous dose and approximately 20 times the average human intramuscular dose. A slightly higher acute toxicity observed in neonatal rats was not sufficiently elevated to suggest an increased hazard when used in children. Daily intravenous injections in rats of five times the average human intravenous dose and intramuscular injections in dogs at four times the average human intramuscular dose demonstrated excellent tolerance for as long as 6 weeks. Similarly, twice weekly anesthetic sessions of one, three, or six hours’ duration in monkeys over a four- to six-week period were well tolerated.
Interaction with Other Drugs Commonly Used for Preanesthetic Medication
Large doses (three or more times the equivalent effective human dose) of morphine, meperidine, and atropine increased the depth and prolonged the duration of anesthesia produced by a standard anesthetizing dose of ketamine in Rhesus monkeys. The prolonged duration was not of sufficient magnitude to contraindicate the use of these drugs for preanesthetic medication in human clinical trials.
Blood Pressure
Blood pressure responses to ketamine vary with the laboratory species and experimental conditions. Blood pressure is increased in normotensive and renal hypertensive rats with and without adrenalectomy and under pentobarbital anesthesia.
Intravenous ketamine produces a fall in arterial blood pressure in the Rhesus monkey and a rise in arterial blood pressure in the dog. In this respect the dog mimics the cardiovascular effect observed in man. The pressor response to ketamine injected into intact, unanesthetized dogs is accompanied by a tachycardia, rise in cardiac output and a fall in total peripheral resistance. It causes a fall in perfusion pressure following a large dose injected into an artificially perfused vascular bed (dog hindquarters), and it has little or no potentiating effect upon vasoconstriction responses of epinephrine or norepinephrine. The pressor response to ketamine is reduced or blocked by chlorpromazine (central depressant and peripheral α-adrenergic blockade), by ß-adrenergic blockade, and by ganglionic blockade. The tachycardia and increase in myocardial contractile force seen in intact animals does not appear in isolated hearts (Langendorff) at a concentration of 0.1 mg of ketamine nor in Starling dog heart-lung preparations at a ketamine concentration of 50 mg/kg of HLP. These observations support the hypothesis that the hypertension produced by ketamine is due to selective activation of central cardiac stimulating mechanisms leading to an increase in cardiac output. The dog myocardium is not sensitized to epinephrine and ketamine appears to have a weak antiarrhythmic activity.
Metabolic Disposition
Ketamine is rapidly absorbed following parenteral administration. Animal experiments indicated that ketamine was rapidly distributed into body tissues, with relatively high concentrations appearing in body fat, liver, lung, and brain; lower concentrations were found in the heart, skeletal muscle, and blood plasma. Placental transfer of the drug was found to occur in pregnant dogs and monkeys. No significant degree of binding to serum albumin was found with ketamine.
Balance studies in rats, dogs, and monkeys resulted in recovery of 85% to 95% of the dose in the urine, mainly in the form of degradation products. Small amounts of drug were also excreted in the bile and feces. Balance studies with tritium-labeled ketamine in human subjects (1 mg/lb given intravenously) resulted in the mean recovery of 91% of the dose in the urine and 3% in the feces. Peak plasma levels averaged about 0.75 mcg/mL, and CSF levels were about 0.2 mcg/mL, 1 hour after dosing.
Ketamine undergoes N-demethylation and hydroxylation of the cyclohexanone ring, with the formation of water-soluble conjugates which are excreted in the urine. Further oxidation also occurs with the formation of cyclohexanone derivative. The unconjugated N-demethylated metabolite was found to be less than one-sixth as potent as ketamine. The unconjugated demethyl cyclohexanone derivative was found to be less than one-tenth as potent as ketamine. Repeated doses of ketamine administered to animals did not produce any detectable increase in microsomal enzyme activity.
Reproduction
Male and female rats, when given five times the average human intravenous dose of ketamine for three consecutive days about one week before mating, had a reproductive performance equivalent to that of saline-injected controls. When given to pregnant rats and rabbits intramuscularly at twice the average human intramuscular dose during the respective periods of organogenesis, the litter characteristics were equivalent to those of saline-injected controls. A small group of rabbits was given a single large dose (six times the average human dose) of ketamine on Day 6 of pregnancy to simulate the effect of an excessive clinical dose around the period of nidation. The outcome of pregnancy was equivalent in control and treated groups.
To determine the effect of ketamine on the perinatal and postnatal period, pregnant rats were given twice the average human intramuscular dose during Days 18 to 21 of pregnancy. Litter characteristics at birth and through the weaning period were equivalent to those of the control animals. There was a slight increase in incidence of delayed parturition by one day in treated dams of this group. Three groups each of mated beagle bitches were given 2.5 times the average human intramuscular dose twice weekly for the three weeks of the first, second, and third trimesters of pregnancy, respectively, without the development of adverse effects in the pups.
Manufactured by: Manufactured for:
Ben Venue Laboratories, Inc. Bedford Laboratories™
Bedford, OH 44146 Bedford, OH 44146
January 2008 KTP06
VIAL LABEL
Vial Label 500 mg/10 mL
CARTON
Shelf Carton 500 mg/10 mL
| KETAMINE HYDROCHLORIDE ketamine hydrochloride injection |
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| Marketing Information | |||
| Marketing Category | Application Number or Monograph Citation | Marketing Start Date | Marketing End Date |
| ANDA | ANDA074524 | 07/01/1996 | |
| Labeler - Bedford Laboratories (884528407) |
| Establishment | |||
| Name | Address | ID/FEI | Operations |
| Ben Venue Laboratories, Inc. | 004327953 | MANUFACTURE | |
Revised: 03/2010Bedford Laboratories
Ketek
30/06/10
Generic name: Telithromycin
Brand names: KetekWhy is Ketek prescribed?
Ketek is a new type of antibiotic known as a ketolide. It is used to treat bacterial infections in the lungs and sinuses, specifically:
- Acute (severe or sudden) flare-ups of chronic bronchitis
- Acute sinusitis
- Pneumonia
Most important fact about Ketek
Like all antibiotics, Ketek could cause a severe inflammation of the colon (known as pseudomembranous colitis). It results from bacterial overgrowth in the colon and ranges in severity from mild to life-threatening. Contact your doctor right away if you develop any of the following:
- Abdominal cramps
- Watery diarrhea
- Frequent bowel movements
- Low-grade fever
- Bloody stools
How should you take Ketek?
Try to take Ketek at the same time every day. It may be taken with or without food.
Your doctor will only prescribe Ketek to treat a bacterial infection; it will not cure a viral infection, such as the common cold. It’s important to take the full dosage schedule of Ketek, even if you’re feeling better in a few days. Not completing the full dosage schedule may decrease the drug’s effectiveness and increase the chances that the bacteria may become resistant to Ketek and other antibiotics.
–If you miss a dose…
Take the forgotten dose as soon as you remember. However, if it is almost time for your next dose, skip the one you missed and return to your regular schedule. Do not take two doses at once.
–Storage instructions…
Store at room temperature.
Ketek side effects
Side effects cannot be anticipated. If any develop or change in intensity, tell your doctor as soon as possible. Only your doctor can determine if it is safe to continue using Ketek.
- Side effects may include:
Diarrhea, nausea, headache, dizzinessWhy should Ketek not be prescribed?
You should not use Ketek if you have ever had an allergic reaction to it or to macrolide antibiotics such as erythromycin (E-Mycin, Erytab, Erythrocin, and others), Zithromax, and Biaxin.
You should not use Ketek if you are currently taking the medications pimozide (Orap) or cisapride.
Special warnings about Ketek
Use Ketek with caution if you have myasthenia gravis. The drug can worsen your symptoms and cause severe–and even life-threatening–reactions. Be sure to tell your doctor if you have this illness.
Ketek may cause visual problems, including blurred vision or difficulty focusing. These episodes can last for several hours. Problems with vision are most likely to occur after the first or second dose, although they can occur any time during treatment. If visual problems occur, avoid driving a motor vehicle, operating heavy machinery, or engaging in other hazardous activities. Also avoid looking quickly from one object to another. If you have vision problems that interfere with your daily activities, notify your doctor.
Ketek could potentially affect heart rhythm and cause changes on an electrocardiogram (ECG or EKG). Tell the doctor if you develop an irregular heartbeat or if you faint while taking the drug. Use Ketek cautiously, if at all, if you have a condition that makes you susceptible to heartbeat irregularities, such as low potassium or magnesium levels, a severely slow heartbeat, or a congenital heart rhythm disturbance.
There have been reports of liver function problems in people taking Ketek. Use Ketek cautiously if you’ve ever had liver problems, including hepatitis or jaundice (yellowing of the skin or whites of the eyes).
Possible food and drug interactions when taking Ketek
Ketek should never be combined with the drugs pimozide (Orap) or cisapride.
Ketek could alter levels of certain cholesterol-lowering drugs, including atorvastatin (Lipitor), lovastatin (Mevacor, Altocor), and simvastatin (Zocor). This could increase the risk of drug-induced muscle damage. Therapy with these cholesterol drugs should generally be stopped until treatment with Ketek is finished.
Ketek should also be avoided if you’re taking medication to correct an abnormal heart rhythm. Examples include quinidine, procainamide (Procanbid), and dofetilide (Tikosyn).
When Ketek is taken together with certain other drugs, the effects of either could be increased, decrease, or altered. It is especially important to check with your doctor before combining Ketek with the following:
Carbamazepine (Tegretol)
Cyclosporine (Sandimmune)
Digoxin (Lanoxin)
Diuretics (water pills) such as furosemide (Lasix) or hydrochlorothiazide (HydroDIURIL, Esidrix)
Ergot-containing drugs such as Cafergot
Hexobarbital
Itraconazole (Sporanox)
Ketoconazole (Nizoral)
Metoprolol (Lopressor, Toprol-XL)
Midazolam (Versed)
Phenytoin (Dilantin)
Rifampin (Rifadin, Rifamate, Rimactane)
Sirolimus (Rapamune)
Tacrolimus (Prograf)
Theophylline (Theo-Dur)Special information if you are pregnant or breastfeeding
The effects of Ketek during pregnancy have not been adequately studied. Ketek should be used only if the benefits outweigh the potential risks to the baby. Notify your doctor right away if you become pregnant or plan to become pregnant while taking Ketek.
It is not known whether Ketek appears in human breast milk. However, it did appear when given to breastfeeding animals. If Ketek is essential to your health, the doctor may advise you to stop breastfeeding until your treatment is finished.
Recommended dosage for Ketek
ADULTS 18 YEARS AND OLDER
The usual dose is two 400-milligram tablets (for a total of 800 milligrams) taken once a day at the same time. For acute flare-ups of chronic bronchitis or acute sinusitis, treatment lasts 5 days. For pneumonia, treatment lasts 7 to 10 days.
Safety and effectiveness in children have not been studied.
Overdosage
Although no specific information on Ketek overdose is available, any medication taken in excess can have serious consequences. If you suspect an overdose, seek emergency treatment immediately.
Ketalar
30/06/10
Generic Name: ketamine (KET a meen)
Brand Names: Ketalar
What is Ketalar (ketamine)?
Ketamine is an anesthetic medication.
Ketamine is used as a general anesthetic to prevent pain and discomfort during certain medical tests or procedures, or minor surgery.
Ketamine may also be used for purposes other than those listed in this medication guide.
What is the most important information I should know about Ketalar (ketamine)?
Before you receive ketamine, tell your doctor if you are allergic to any drugs, or if you have a history of alcoholism.
It may take you longer to recover from anesthesia with ketamine if you have recently used a barbiturate such as phenobarbital (Luminal) or secobarbital (Seconal), or a narcotic medication such as fentanyl (Actiq, Duragesic), hydrocodone (Lortab, Vicodin), oxycodone (OxyContin), propoxyphene (Darvocet, Darvon), and others.
Ketamine may be harmful to an unborn baby. Before you receive ketamine, tell your doctor if you are pregnant.
You may feel strange or slightly confused when you first come out of anesthesia. Tell your caregivers if these feelings are severe or unpleasant.
Ketamine can cause side effects that may impair your thinking or reactions for 24 hours or longer. Be careful if you drive or do anything that requires you to be awake and alert. You will probably not be allowed to drive yourself home after your surgery or medical procedure.
Follow your doctor’s instructions about any restrictions on food, beverages, or activity after you recover from anesthesia.
What should I discuss with my health care provider before receiving Ketalar (ketamine)?
Before you receive ketamine, tell your doctor if you are allergic to any drugs, or if you have a history of alcoholism.
Ketamine may be harmful to an unborn baby. Before you receive ketamine, tell your doctor if you are pregnant.
How is ketamine given?
Ketamine is given as an injection through a needle placed into a vein or muscle. You will receive this injection in a clinic or hospital setting.
Your caregivers will monitor your heart function, blood pressure, and breathing while you are under the effects of ketamine.
You may feel strange or slightly confused when you first come out of anesthesia. Tell your caregivers if these feelings are severe or unpleasant.
What happens if I miss a dose?
Since ketamine is usually given for anesthesia, you are not likely to be on a dosing schedule.
What happens if I overdose?
An overdose of ketamine is unlikely to occur since the medication is given by a doctor. Your vital signs will be closely watched while you are under anesthesia to make sure the medication is not causing any harmful effects.
What should I avoid after receiving Ketalar (ketamine)?
Ketamine can cause side effects that may impair your thinking or reactions for 24 hours or longer. Be careful if you drive or do anything that requires you to be awake and alert. You will probably not be allowed to drive yourself home after your surgery or medical procedure.
Follow your doctor’s instructions about any restrictions on food, beverages, or activity after you recover from anesthesia.
Ketalar (ketamine) side effects
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat. Tell your caregivers at once if you have any of these serious side effects within 24 hours after you receive ketamine:
-
severe confusion;
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hallucinations;
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unusual thoughts; or
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extreme fear.
Less serious side effects may include:
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dream-like feeling;
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double vision;
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jerky muscle movements;
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dizziness, drowsiness;
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nausea, vomiting, loss of appetite; or
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sleep problems (insomnia).
This is not a complete list of side effects and others may occur. Tell your doctor about any unusual or bothersome side effect. You may report side effects to FDA at 1-800-FDA-1088.
What other drugs will affect Ketalar (ketamine)?
Before you receive ketamine, tell your doctor if you have recently used any of the following:
-
a barbiturate such as amobarbital (Amytal), butabarbital (Butisol), mephobarbital (Mebaral), secobarbital (Seconal), or phenobarbital (Luminal, Solfoton); or
-
narcotic medication such as fentanyl (Actiq, Duragesic, Ionsys), hydrocodone (Lortab, Vicodin), hydromorphone (Dilaudid, Palladone), methadone (Dolophine, Methadose), morphine (Kadian, MS Contin, Oramorph), oxycodone (OxyContin, Percocet, Roxicodone), propoxyphene (Darvocet, Darvon), and others.
If you are using any of these drugs, it may take you longer to recover from anesthesia with ketamine.
There may be other drugs that can affect ketamine. Tell your doctor about all your prescription and over-the-counter medications, vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start a new medication without telling your doctor.
Where can I get more information?
- Your doctor or pharmacist can provide more information about ketamine.
- Every effort has been made to ensure that the information provided by Cerner Multum, Inc. (‘Multum’) is accurate, up-to-date, and complete, but no guarantee is made to that effect. Drug information contained herein may be time sensitive. Multum information has been compiled for use by healthcare practitioners and consumers in the United States and therefore Multum does not warrant that uses outside of the United States are appropriate, unless specifically indicated otherwise. Multum’s drug information does not endorse drugs, diagnose patients or recommend therapy. Multum’s drug information is an informational resource designed to assist licensed healthcare practitioners in caring for their patients and/or to serve consumers viewing this service as a supplement to, and not a substitute for, the expertise, skill, knowledge and judgment of healthcare practitioners. The absence of a warning for a given drug or drug combination in no way should be construed to indicate that the drug or drug combination is safe, effective or appropriate for any given patient. Multum does not assume any responsibility for any aspect of healthcare administered with the aid of information Multum provides. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the drugs you are taking, check with your doctor, nurse or pharmacist.
Copyright 1996-2006 Cerner Multum, Inc. Version: 1.03. Revision Date: 4/12/2009 4:36:46 PM.

