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Terbinafine (By mouth)

Terbinafine (TER-bin-a-feen)

There may be other brand names for this medicine.

This medicine is not right for everyone. Do not use it if you had an allergic reaction to terbinafine.

Your doctor will tell you how much medicine to use. Do not use more than directed. Take it at the same time every day.
Tablets: Take it with or without food.
Oral granules:
- Take it with food.
- Sprinkle the oral granules on a spoonful of pudding or other soft, non-acidic food such as mashed potatoes. This mixture must be swallowed immediately without chewing. Do not use applesauce or fruit-based foods. If you need 2 packets of oral granules with each dose, you may sprinkle the content of both packets on 1 spoonful or 2 spoonfuls of non-acidic food.
Take all of the medicine in your prescription to clear up your infection, even if you feel better after the first few doses. It may take several months for your infection to clear up completely and for healthy nails to grow out and replace the infected nails.
This medicine should come with a Medication Guide. Ask your pharmacist for a copy if you do not have one.
Missed dose: Take a dose as soon as you remember. If it is almost time for your next dose, wait until then and take a regular dose. Do not take extra medicine to make up for a missed dose. If you miss a dose of terbinafine tablets, take it as soon as you can. If your next regular dose is less than 4 hours away, wait until then to use the medicine and skip the missed dose.
Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light.

Tell your doctor if you are pregnant or breastfeeding, or if you have kidney disease, liver disease, blood problems, lupus, or a weak immune system (such as HIV infection or AIDS).
This medicine may cause the following problems:
- Liver problems
- Changes to your sense of taste or smell
- Depression or other changes in your mood or behavior
- Serious skin reactions
This medicine may make your skin more sensitive to sunlight. Wear sunscreen. Do not use sunlamps or tanning beds.
This medicine may make you bleed, bruise, or get infections more easily. Take precautions to prevent illness and injury. Wash your hands often.
Call your doctor if your symptoms do not improve or if they get worse. You may need to take this medicine for several weeks or months before your infection gets better.
Your doctor will do lab tests at regular visits to check on the effects of this medicine. Keep all appointments.
Keep all medicine out of the reach of children. Never share your medicine with anyone.

Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
Blistering, peeling, scaly, or red skin rash
Changes in mood or behavior, depression
Dark urine or pale stools, nausea, vomiting, loss of appetite, stomach pain, yellow skin or eyes
Fever, chills, cough, sore throat, and body aches
Unusual bleeding, bruising, or weakness

Last Updated: 12/4/2023