Ketoconazole is a prescription medication that is used to treat fungal infections in the body. Ketoconazole is an antifungal medication that works by stopping the growth of fungus. Ketoconazole should not be used to treat fungal infections on the skin or nails and is typically only used when you cannot use other antifungal medications.

Make sure to always read the patient information and instructions before using this medication. Always follow your doctor’s directions.

• Your doctor may perform blood tests before prescribing ketoconazole to make sure that it is safe for you.
• Use ketoconazole for the full length of time it is prescribed, even if your symptoms improve.
• Skipping doses of ketoconazole may increase the risk of the infection becoming resistant to medication.

Tell your doctor and pharmacist:

• About your drug and other allergies.
• If you take any other prescription or over-the-counter medications.
• Your medical history particularly of liver disease, liver problems, adrenal gland problems, or long QT syndrome.
• If you have a family history of long QT syndrome.
• If you are pregnant or planning pregnancy.

You should also know:

• You should avoid alcohol while taking ketoconazole. Alcohol may cause dangerous side effects.
• Ketoconazole should be taken when you cannot take other antifungal medications.
• Ketoconazole may interact with other medications. Keep your doctor informed about any changes to your other medications.
• Do not breast-feed while taking ketoconazole.
• This medication may increase your risk of sunburn. Wear protective clothing and sunscreen while outside and avoid tanning beds.

Common side effects of ketoconazole include but are not limited to:

• Headaches.
• Dizziness.
• Abnormal liver function tests.
• Nausea.
• Stomach pain.
• Diarrhea.
• Breast swelling.

Get medical help if you have any of the following side effects of ketoconazole.

• Shortness of breath.
• Sudden dizziness or feeling like you might pass out.
• Fast or pounding heartbeats or a fluttering in your chest.
• Vomiting.
• Tiredness.
• Unusual weakness.
• Signs of a liver problem including jaundice, dark urine, loss of appetite, clay-colored stools, fever, or pain in your upper stomach.
• Signs of a severe skin reaction including skin pain, fever, burning eyes, sore throat, or a red or purple rash that blisters and peels.
• Symptoms of an allergic reaction such as difficulty breathing, hives, or swelling in your face, lips, or throat.

What should I do if I miss a dose of ketoconazole?

If you miss a dose of ketoconazole, you should take it as soon as you remember. However, if it is almost time for your next dose, then skip your missed dose.

What is the strength of ketoconazole?

Ketoconazole is available in a strength of 200mg.