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Terbinafine

Brand Names

; Lamisil® AT™ Topical ; Lamisil® Dermgel ; Lamisil® Topical

Therapeutic Categories

Antifungal Agent, Oral; Antifungal Agent, Topical

Reasons not to take this medicine

• If you have an allergy to naftifine, terbinafine, or any other part of the medicine.
• If you have severe liver disease or severe kidney disease.

What is this medicine used for?

• Improvements may be seen after this medicine is done. It may take 16-40 weeks to see the benefits.
• Skin:
  • This medicine is used to treat athlete's foot, jock itch, and ringworm.
• Oral:
  • This medicine is used to treat fungus (yeast) infections of the fingernail and toenail.

How does it work?

• Terbinafine kills the fungus (yeast).

How is it best taken?

• Skin:
  • Do not take by mouth. For skin only. Keep out of mouth, nose, and eyes (may burn).
  • Wash your hands before and after use.
  • Clean affected area before use.
  • Use a small amount over the area affected as a light film. Rub in gently.
  • Do not put coverings (bandages, dressings, make-up) over the area unless told to do so by healthcare provider.
• Oral:
  • Take with or without food. Take with food if this medicine causes an upset stomach.
  • Use entire prescription as directed, even if feeling better.

What do I do if I miss a dose?

• Take a missed dose as soon as possible.
• If it is almost time for the next dose, skip the missed one. Return to your regular schedule.
• Do not take a double dose or extra doses.

What are the precautions when taking this medicine?

• Tell healthcare provider if you are allergic to any medicine. Make sure to tell about the allergy and how it affected you. This includes telling about rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, throat; or any other symptoms involved.
• Tell healthcare provider if you are pregnant or plan on getting pregnant.
• Tell healthcare provider if you are breast-feeding.

What are the common side effects of this medicine?

• Skin:
  • Redness, burning, stinging, and itching.
• Oral:
  • Diarrhea.
  • Belly pain and cramps.
  • Rash.
  • Taste changes or loss of taste.

What should I monitor?

• Oral:
  • Check blood work if you are taking this medicine for more than 6 weeks. Talk with healthcare provider.

Reasons to call healthcare provider immediately

• Signs of a life-threatening reaction. These include wheezing; tightness in the chest; fever; itching; bad cough; blue skin color; fits; swelling of face, lips, tongue, or throat.
• Any rash.
• Skin:
  • If you are using the solution, see no improvement in your condition after 1 week or if you are feeling worse.
  • Severe redness, stinging, blistering, peeling, swelling, or itching.
  • If you are using the cream, and see no improvement in 2-4 weeks after medicine is gone or you are feeling worse.

How should I store this medicine?

• Store tablets in a tight, light-resistant container at room temperature.
• Store cream and solution at room temperature.

General statements

• Do not share your medicine with others and do not take anyone else's medicine.
• Keep all medicine out of the reach of children and pets.
• Keep a list of all your medicines (prescription, herbal/supplements, vitamins, over-the-counter) with you. Give this list to healthcare provider (doctor, nurse, pharmacist, physician assistant).
• Talk with healthcare provider before starting any new medicine, including over-the-counter or natural products (herbs, vitamins).