Botanical name: 

The plant of Hedeoma pulegioides.—U.S.

Dose.—The infusion may be taken in any quantity that the stomach will bear. The dose of the oil is gtt. v. to xv.

Therapeutic Action.—Pennyroyal is diaphoretic, emmenagogue, and stimulant. It constitutes a grateful aromatic stimulant and diaphoretic, and is used with advantage in febrile and inflammatory diseases, as a warm diaphoretic drink, when pleasant to the patient. It is a popular remedy in sudden colds, suppressed menstruation, flatulent colic, spasm of the stomach and bowels, etc. In suppressed lochia it is probably one of our most efficient remedies, and is one that we have used almost to the exclusion of any other, and with the best results.

The American Eclectic Materia Medica and Therapeutics, 1898, was written by John M. Scudder, M.D.