The root of Stillingia sylvatica.

Characters. - About twelve inches (30 centimetres) long, and nearly two inches (5 centimetres) thick, sub-cylindrical, slightly branched, compact, wrinkled, tough, greyish-brown, breaking with a fibrous fracture, showing a thick bark and porous wood, the inner bark and medullary rays with numerous yellowish-brown resin cells; odour peculiar, unpleasant; taste bitter, acrid, pungent.

Composition. - It contains a resinous substance.

Preparation.

dose.

Extractum Stillingiae Fluidum.............................................................

15-30 min.

Uses. - In large doses it causes vomiting and purging. It has been used as an alterative in secondary syphilis and cutaneous diseases.