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Terbinafine is available as a 250 mg oral tablet.

Terbinafine is an antifungal that is used to treat fungal infection of toenail or fingernail.

Terbinafine is an antifungal. It kills the fungus causing the infection by preventing it from forming its protective outer layer.

Terbinafine is typically given as 250 mg by mouth once a day for 6 weeks (for fingernail infection) or 12 weeks (for toenail infection).

Terbinafine is a safe and effective treatment when used for FDA licensed indications. However, like all medications, they may give you unwanted side effects. You should always discuss potential side effects with your physician to ensure the medication is suitable and right for you. You should not use this medication if you have a history of allergic reaction to oral Terbinafine because of the risk of anaphylaxis.

Common side effects of Terbinafine:

• Headache
• Rash
• Diarrhea
• Upset stomach

Serious side effects are rare with Terbinafine. Contact your healthcare provider immediately if you experience any of the following.

• Liver damage: nausea, vomiting, right upper stomach pain, dark urine, pale stools, yellowing of the skin or whites of the eyes
• Serious allergic reaction: rash, blisters, fever, flu-like symptoms

The following medications may interact with Terbinafine:

• Terbinafine is an inhibitor of CYP4502D6 isozyme and has an effect on metabolism of desipramine, cimetidine, fluconazole, cyclosporine, rifampin, and caffeine

Various FDA-approved generic manufacturers

It is not known if Terbinafine will harm your unborn baby. You should talk to your healthcare provider before taking this medication if you are pregnant.

• Lamisil
• Lamisil AT