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 ?
Pennyroyal oil can also be fatal if taken internally.
But more recent home remedies such as garlic, brewer's yeast, and pennyroyal oil have been know to do little more, often nurturing healthy and happy fleas instead of deterring them.