Read the Medication Guide provided by your pharmacist before you start taking terbinafine and each time you get a refill. If you have any questions, ask your doctor or pharmacist.

Take this medication by mouth with or without food as directed by your doctor, usually once a day. The dosage and length of treatment is based on your medical condition and response to treatment.

It may take several months after you finish treatment to see the full benefit of this drug. It takes time for your new healthy nails to grow out and replace the infected nails.

Continue to take this medication until the full prescribed amount is finished, even if symptoms disappear after a few days. Stopping the medication too early may result in a return of the infection.

Tell your doctor if your condition lasts or gets worse.