Ipecacuanha, a drug, the dried root of Cephaelis ipecacuanha, a plant from Brazil. The ipecacuanha from that country is called annulated, to distinguish it from the striated kind from Peru. The active ingredients reside chiefly in the cortex. It contains a feeble alkaloid called ceretin. Its preparation are pills, powders, lozenges, and wine. In large doses it is an emetic; in smaller ones it is an expectorant and an alterative. It is considered a specific in dysentery. Made into an ointment, it is a counter-irritant.
Ipecacuanha is used to refer to plants which produce this drug, which include the plant mentioned and others.