The dried bark of Nectandra Rodiaei, the green-heart tree. Imported from British Guiana.

Characters. - In large flat heavy pieces; external colour greyish-brown, internal, dark cinnamon-brown; taste strongly and persistently bitter, with considerable astringency.

Composition. - Contains beberine, a peculiar alkaloid. Bebe-rine is a colourless, amorphous substance, soluble in alcohol, but sparingly soluble in boiling water.

Preparation.

B.P.

Dose.

Beberinae Sulphas.............................................................

1-10 gr.

U.S.P. None.