Follow all directions on your prescription label. Do not take this medicine in larger or smaller amounts or for longer than recommended.
You may take the terbinafine tablet with or without food.
Terbinafine granules should be sprinkled into a spoonful of pudding or mashed potatoes (do not mix with applesauce, fruit juice, or other fruit-based or acidic foods). Swallow this mixture right away without chewing. Do not save the mixture for later use.
Terbinafine is usually taken for 6 weeks to treat scalp or fingernail infections, and for 12 weeks to treat a toenail infection.
Use this medicine for the full prescribed length of time. Your symptoms may improve before the infection is completely cleared. Skipping doses may also increase your risk of further infection that is resistant to antifungal medicine. Terbinafine will not treat a viral infection such as the flu or a common cold.
While using terbinafine, you may need frequent blood tests.
It may take several months for your nails to return to their normal appearance after your treatment with terbinafine.
Store at room temperature away from moisture, heat, and light. Keep the terbinafine oral granules in their sealed packet until you are ready to use.
 Detailed Terbinafine dosage information
What happens if I miss a dose?
Take the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up the missed dose.
What happens if I overdose?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.
Overdose symptoms may include headache, dizziness, vomiting, stomach pain, rash, and increased urination.
