The leaves and tops of Hedeoma pulegioides.

Characters. - Leaves opposite, short-petioled, about half an inch (12 millimetres) long, oblong-ovate, obscurely serrate, glandular beneath; branches roundish-quadrangular; flowers in small, axillary cymules, with a tubular-ovoid, two-lipped and five-toothed calyx, and a pale-blue, spotted, two-lipped corolla, containing two sterile and two fertile exserted stamens; odour strong, mint-like; taste warm and pungent.

Preparation.

u.s.p.

Dose.

Oleum Hedeomae ..................................................................................

1-5 min.

Composition. - It contains a volatile oil.

Action and Uses. - It is stimulant, carminative, diaphoretic, and emmenagogue. It is used in flatulence and in amenorrhea. It is frequently given in the form of hot infusion, to promote the menstrual flow when delay or recent suppression has occurred.