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What are the side effects of Penlac?


Penlac® (ciclopirox) is a medication that's prescribed to treat fungal infections of the fingernails and toenails by killing the fungus responsible for these infections. Penlac® is a lacquer that you apply directly to the affected nails.

The most common side effects of Penlac® are redness of the skin surrounding the nail, rash and nail disorders. Studies show that about 9%  of people experience side effects. If you do experience any side effects while using Penlac®, notify your doctor.

Read more about fungal nail infections in our Health Encyclopedia.

See all over-the-counter antifungal nail products available on

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