These comprise anthelmintics, demulcents, diluents, and emollients.

783. Anthelmintics

These are medicines given for the purpose of expelling or destroying worms. They are cowhage, scammony, male fern root, calomel, gamboge, tin, and turpentine.

784. Cowhage

Cowhage is used to expel the round worm, which it does by wounding it with the fine prickles.

Dose

of the confection, for a child three or four years old, a teaspoonful early, for three mornings, followed by a dose of castor oil. (

See par