This medication is used to treat a variety of fungal skin infections such as ringworm, athlete's foot, and jock itch. This medication is also used to treat a skin condition known as pityriasis (tinea versicolor), a fungal infection that causes a lightening or darkening of the skin of the neck, chest, arms, or legs. Terbinafine is an antifungal that works by preventing the growth of fungus.
Use this medication on the skin only. Clean and thoroughly dry the area to be treated. Apply a thin layer of the medication on and around the affected area, usually once or twice daily as directed on the product package. If you are uncertain about any of the information, consult your doctor or pharmacist. Wash your hands after using unless the area being treated includes the hands. Do not wrap, cover, or bandage the area unless directed to do so by your doctor.
Do not apply this medication on the scalp or nails unless otherwise directed by your doctor.
The dosage and length of treatment depends on the type of infection being treated.
Do not apply more often or use longer than directed. This may increase the risk of side effects.
Use this medication regularly to get the most benefit from it. To help you remember, use it at the same time(s) each day.
Continue to use this medication until the full treatment period is finished, even if symptoms disappear after a few days. Stopping the medication too early may result in a return of the infection.
Your condition may continue to improve after the full treatment is finished. It may take several weeks after treatment for the infection to completely heal. Inform your doctor if your condition worsens or does not improve within 2 weeks for jock itch and ringworm and within 4 weeks for athlete's foot.
Burning, irritation, or itching at the application site may occur. If any of these effects persist or worsen, notify your doctor or pharmacist promptly.
If your doctor has directed you to use this medication, remember that he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
Tell your doctor immediately if any of these unlikely but serious side effects occur: blistering/swelling/oozing at the application site.
A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any of the following symptoms of a serious allergic reaction: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.
In the US -
Before using terbinafine, tell your doctor or pharmacist if you are allergic to it; or to other allylamine antifungals (e.g., naftifine); or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
If you have any health problems, consult your doctor or pharmacist before using this product.
During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor.
Other forms of this medication pass into breast milk when taken by mouth. It is not known whether this drug passes into breast milk when applied to the skin. This drug should not be used on the breast while breast-feeding. Consult your doctor before breast-feeding.
If you are taking this medication under your doctor's direction, your doctor or pharmacist may already be aware of any possible drug interactions and may be monitoring you for them. Do not start, stop, or change the dosage of any medicine before checking with your doctor or pharmacist first.
Before using this medication, tell your doctor or pharmacist of all prescription and nonprescription/herbal products you may use, especially of: drugs that weaken the immune system (e.g., cyclosporine, corticosteroids such as prednisone).
This document does not contain all possible interactions. Therefore, before using this product, tell your doctor or pharmacist of all the products you use. Keep a list of all your medications with you, and share the list with your doctor and pharmacist.
This medicine may be harmful if swallowed. If swallowing or overdose is suspected, contact a poison control center or emergency room immediately. US residents can call their local poison control center at 1-800-222-1222. Canada residents can call a provincial poison control center.
Keep all regular medical and laboratory appointments.
If you are treating athlete's foot, make sure to wear well-fitting, ventilated shoes. Also, change shoes and socks at least once daily.
When this medication is used to treat pityriasis, your normal skin color may not return immediately. It may take several months after treatment is completed for your natural skin color to return.
If you miss a dose, use it as soon as you remember. If it is near the time of the next dose, skip the missed dose and resume your usual dosing schedule. Do not double the dose to catch up.
Store at room temperature between 68-77 degrees F (20-25 degrees C) away from light and heat. Do not refrigerate. Keep all medicines away from children and pets.
Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company for more details about how to safely discard your product.
Information last revised March 2013. Copyright(c) 2013 First Databank, Inc.
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