is peppermint oil toxic to cats
Peppermint oil, however, is especially dangerous. If swallowed, peppermint oil can cause gastrointestinal upset, a suppression of the central nervous system, and even liver damage. Some peppermint oils contain a derivative of aspirin, which is highly toxic to cats. Peppermint oils should not be used around cats at any time. The Safe Use of Peppermint with Cats.