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Lamisil AT

Generic name: terbinafine topical [ter-BIN-a-feen-TOP-i-kal]
Brand names: Athlete’s Foot Cream, LamISIL AT and Silka Antifungal are just a few options available on the market for antifungal treatment of feet.
Drug class: topical antifungals

What is Lamisil AT?

Terbinafine fights infections that are caused by fungus.Lamisil (for the skin) is used for treating skin infections like athlete’s foot and jock itch.Lamisil AT can be used in other ways not mentioned in this medication guide.

Side effects of Lamisil AT

If you experience symptoms indicative of an allergic reaction, seek medical assistance immediately: hives, difficulty breathing or swelling to lips, face, tongue or throat.

Terbinafine may cause serious side effects. If you experience:

  • Severe blistering, itching or redness, peeling, and irritation of the treated skin

You may experience less serious side effects or none at all.There may be other side effects.Call your doctor if experiencing side effects; for additional support call the FDA's toll free number at 1-800-FDA-1088 to report them.


Please read all the instructions on the label or package of your medication. Provide your healthcare provider with details regarding any existing conditions, allergies or medicines you are taking.

Similar/related drugs

Clotrimazole Topical, Ketoconazole Topical, Terbinafine Miconazole Topical (Lamisil).

Before you take this drug

If you have an allergy to Lamisil AT, then it is best not to use it.Lamisil AT should not harm an unborn child. Inform your doctor if you are or plan to be pregnant.Terbinafine is not known to pass into breast milk or to harm a baby who is nursing. You should tell your doctor if your baby is breastfed.Terbinafine should not be used by anyone under the age of 12.

How to take Lamisil AT?

Do not exceed the recommended dosage or duration. Use the recommended dose and do not exceed it.Avoid taking it by mouth. Lamisil AT should only be used on the skin. This medicine should not be used to treat fungal infections in your nails, toenails, or scalp.You should read all the information provided, including medication guides and instructions. If you have questions, ask your doctor or pharmacist.After using the medicine, wash your hands.Dry and clean the affected area. Use the medication as directed.You should take this medication for the entire prescribed time. You may experience symptom improvement before the virus has completely been cleared.If your symptoms don't improve or worsen, reach out to your physician immediately.Cover the treated area only if your doctor says so.Store at room temperature away from heat and moisture; when not in use, ensure the container remains securely closed.

What happens if I miss the dose?

As soon as you recall, apply the missed dose. If it is almost time for your next dose, take that one instead. If the time for taking another pill arrives soon after taking an overdue one, skip any missed pills altogether and wait to take your regular dosage instead. Don't use extra medicine to compensate for a missed dose.

What happens if I overdose?

Overdoses of terbinafine are not dangerous. If anyone accidentally swallows the medication, seek emergency medical attention. You can also call Poison Help at 1-800-222-1222.

What should be avoided?

Rinse with water if Lamisil AT accidentally gets into your eyes, nose, or mouth.Do not use other medications to treat the same areas that you have treated with terbinafine, unless you are told by your doctor.Avoid wearing synthetic clothing that is tight-fitting and restricts airflow. You should wear loose-fitting cotton or other natural fibres to keep your infection at bay.

Interaction with other drug

Terbinafine applied topically is unlikely to be affected by other drugs that you may take orally or even inject. Many drugs interact with each other. Inform your healthcare providers of all medications you take, including vitamins and herbal supplements.