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Generic Name: tavaborole topical (TA va BOR ole TOP ik al)
Brand Names: Kerydin

Medically reviewed on Aug 9, 2018

What is Kerydin?

Kerydin (tavaborole) is an antifungal medication that fights infections caused by fungus.

Kerydin topical solution is used to treat a fungal infection of the toenail called onychomycosis caused by due to Trichophyton rubrum or Trichophyton mentagrophytes.

Kerydin topical solution, 5% contains tavaborole, 5% (w/w) in a clear, colorless alcohol-based solution.

Important information

Follow all directions on your medicine label and package. Tell each of your healthcare providers about all your medical conditions, allergies, and all medicines you use.

Before taking this medicine

You should not use Kerydin if you are allergic to tavaborole.

FDA pregnancy category C. It is not known whether Kerydin will harm an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant while using this medicine.

See also: Pregnancy and breastfeeding warnings (in more detail)

It is not known whether tavaborole topical passes into breast milk or if it could harm a nursing baby. Tell your doctor if you are breast-feeding a baby.

Do not use Kerydin solution on a child without medical advice.

How should I use Kerydin?

Use Kerydin solution exactly as prescribed by your doctor. Follow all directions on your prescription label. Do not use this medicine in larger or smaller amounts or for longer than recommended.

Kerydin is usually applied once daily for 48 weeks (approximately 11 months).

Before you apply this medicine, wash and thoroughly dry your toenails.

Apply this medicine over the entire toenail and under the tip of the nail. Allow the medicine to dry completely before putting on a sock or shoe.

Avoid getting this medicine on any other skin besides the cuticles or the skin around your toenail.

Call your doctor if your symptoms do not improve, or if they get worse while using Kerydin.

Use this medicine for the full prescribed length of time. Your symptoms may improve before the infection is completely cleared.

Store at room temperature away from moisture and heat. Keep the bottle tightly closed when not in use.

Kerydin solution is flammable. Do not use near high heat or open flame. Do not smoke until the gel has completely dried on your nail.

See also: Dosage Information (in more detail)

What happens if I miss a dose?

Apply the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not apply extra medicine to make up the missed dose.

What happens if I overdose?

An overdose of Kerydin is not expected to be dangerous. Seek emergency medical attention or call the Poison Help line at 1-800-222-1222 if anyone has accidentally swallowed the medication.

What should I avoid while using Kerydin?

Do not get this medicine in your eyes, mouth, or vagina.

Kerydin side effects

Get emergency medical help if you have any of these signs of an allergic reaction to Kerydin: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Call your doctor at once if you have:

  • severe redness, swelling, or other irritation of the affected toenail.

Common Kerydin side effects may include:

  • skin peeling or redness where the medicine was applied;

  • itching; or

  • ingrown toenail.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

See also: Side effects (in more detail)

What other drugs will affect Kerydin?

It is not likely that other drugs you take orally or inject will have an effect on topically applied Kerydin. But many drugs can interact with each other. Tell each of your health care providers about all medicines you use, including prescription and over-the-counter medicines, vitamins, and herbal products.

Further information

Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use Kerydin only for the indication prescribed.

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.