Nizoral for Cats and Dogs

Nizoral is an anti-fungal medication used in both cats and dogs. It kills various kinds of fungal infections, including yeast infections and ringworm in cats and dogs. Generally, it is not preferred by most vets for these kinds of treatments because it can have a number of side effects. It is a fairly old drug and many newer ones are only slightly more effective and have fewer risks.


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One unexpected benefit from the side effects, however, is that Nizoral is now used as a drug to treat Cushing's disease. Because one of the side effects was the suppression of hormone production, it is often very effective at balancing out the excess hormone production that is the cause of the symptoms of Cushing's disease in pets (see our pages on Cushing's disease in cats and Cushing's disease in dogs). The other side effects can still occur, however, and as with fungal infections there are several other drugs with fewer side effects which your vet will probably want to try first. However, because Cushings in pets can be much more devastating than a fungal infection or even lethal, Nizoral is often worth the risk.

What are the side effects?

Watch for loss of appetite, bleeding, jaundice, vomiting, and diarrhea. Your pet should go see the vet immediately if it experiences any of these symptoms while using Nizoral, and you should generally be on the lookout for anything that seems wrong just in case.

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