pennyroyal oil


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pennyroyal oil

[¦pen·ē¦rȯi·əl ‚ȯil]
(materials)
An essential oil distilled from the dried leaves and tops of the small pennyroyal plants Hedeoma pulegioides or Mentha pulegium; used as a counterirritant in liniments, in insect repellents, and for the production of methanol.
References in periodicals archive ?
vomit wort, wild tobacco) Pennyroyal oil Liver and kidney None (Hedeoma pulegioides, failure, nerve lurk-in-the-ditch, damage, convulsions, mosquito plant, abdominal tenderness, piliolerial, pudding burning of the grass, pulegium, throat; deaths run-by-the-ground, reported.
"Both dogs and cats have died as the result of accidental ingestion of pennyroyal oil," Dryden says.
(Pennyroyal oil is often the active ingredient in herbal flea collars and similar natural pet-care products.)