Ketoconazole should only be used to treat fungal infections when other medications are not available or cannot be tolerated.
Ketoconazole may cause liver damage, sometimes serious enough to require liver transplantation or to cause death. Liver damage may occur in people who do not already have liver disease or any other conditions that increase the risk that they will develop liver damage. Tell your doctor if you drink or have ever drunk large amounts of alcohol and if you have or have ever had liver disease. Do not drink any alcoholic beverages during your treatment with ketoconazole because drinking alcoholic beverages may increase the risk that you will develop liver damage. If you experience any of the following symptoms, call your doctor immediately: extreme tiredness, loss of appetite, weight loss, nausea, vomiting, yellowing of the skin or eyes, dark yellow urine, pale stools, pain in the upper right part of the stomach, fever, or rash.
Ketoconazole can cause QT prolongation (an irregular heart rhythm that can lead to fainting, loss of consciousness, seizures, or sudden death). Do not take disopyramide (Norpace), dofetilide (Tikosyn), dronedarone (Multaq), pimozide (Orap), quinidine (Quinidex, Quinaglute), cisapride (Propulsid; no longer available in the US), methadone (Dolophine, Methadose), and ranolazine (Ranexa) while you are taking ketoconazole. If you experience any of the following symptoms, stop taking ketoconazole and call your doctor immediately: fast, pounding, or irregular heartbeat; fainting; dizziness; lightheadedness; or loss of consciousness.
Keep all appointments with your doctor and the laboratory. Your doctor will order certain tests to check your body's response to ketoconazole.
Your doctor or pharmacist will give you the manufacturer's patient information sheet (Medication Guide) when you begin treatment with ketoconazole and each time you refill your prescription. Read the information carefully and ask your doctor or pharmacist if you have any questions. You can also visit the Food and Drug Administration (FDA) website (http://www.fda.gov/Drugs/DrugSafety/ucm085729.htm) or the manufacturer's website to obtain the Medication Guide.
Talk to your doctor about the risks of taking ketoconazole.
Ketoconazole is used to treat fungal infections when other medications are not available or cannot be tolerated. Ketoconazole should not be used to treat fungal meningitis (infection of the membranes surrounding the brain and spinal cord caused by a fungus) or fungal nail infections. Ketoconazole is in a class of antifungals called imidazoles. It works by slowing the growth of fungi that cause infection.
Ketoconazole comes as a tablet to take by mouth. It is usually taken once a day Take ketoconazole at around the same time every day. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take ketoconazole exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor.
Your doctor may increase your dose if your condition does not improve.
You may need to take ketoconazole for 6 months or longer to cure your infection completely. Continue to take ketoconazole until your doctor tells you that you should stop, even if you feel better. Do not stop taking ketoconazole without talking to your doctor. If you stop taking ketoconazole too soon, your infection may come back after a short time.
High doses of ketoconazole are sometimes used to treat Cushing syndrome (a condition that occurs when there is too much corticosteroid hormone in the body) and advanced prostate cancer (cancer of a male reproductive gland). Ketoconazole has not been shown to be safe or effective for these uses. Talk to your doctor about using ketoconazole for your condition.
This medication may be prescribed for other uses; ask your doctor or pharmacist for more information.
Unless your doctor tells you otherwise, continue your normal diet.
Take the missed dose as soon as you remember it. However, if it is almost time for the next dose, skip the missed dose and continue your regular dosing schedule. Do not take a double dose to make up for a missed one.
change in ability to taste food
change in tongue color
difficulty falling asleep or staying asleep
numbness, burning, or tingling of the hands or feet
sensitivity to light
breast enlargement in males
decrease in sexual ability
swelling of the eyes, face, lips, tongue, hands, feet, ankles, or lower legs
difficulty breathing or swallowing
tiredness or weakness
Ketoconazole may cause a decrease in the number of sperm (male reproductive cells) produced, especially if it is taken at high doses. Talk to your doctor about the risks of taking this medication if you are a man and would like to have children.
Ketoconazole may cause other side effects. Call your doctor if you have any unusual problems while taking this medication.
If you experience a serious side effect, you or your doctor may send a report to the Food and Drug Administration's (FDA) MedWatch Adverse Event Reporting program online [at http://www.fda.gov/Safety/MedWatch] or by phone [1-800-332-1088].
Keep this medication in the container it came in, tightly closed, and out of reach of children. Store it at room temperature and away from excess heat and moisture (not in the bathroom). Throw away any medication that is outdated or no longer needed. Talk to your pharmacist about the proper disposal of your medication.
In case of overdose, call your local poison control center at 1-800-222-1222. If the victim has collapsed or is not breathing, call local emergency services at 911.
Before having any laboratory test, tell your doctor and the laboratory personnel that you are taking ketoconazole.
Do not let anyone else take your medication. Ask your pharmacist if you have any questions about refilling your prescription. If you still have symptoms of infection after you finish the ketoconazole, call your doctor.
It is important for you to keep a written list of all of the prescription and nonprescription (over-the-counter) medicines you are taking, as well as any products such as vitamins, minerals, or other dietary supplements. You should bring this list with you each time you visit a doctor or if you are admitted to a hospital. It is also important information to carry with you in case of emergencies.
Last Revised - 06/15/2014
AHFS® Consumer Medication Information. © Copyright, 2014. The American Society of Health-System Pharmacists, Inc., 7272 Wisconsin Avenue, Bethesda, Maryland. All Rights Reserved. Duplication for commercial use must be authorized by ASHP.