(Purging Cassia.)

Origin. - The dried fruit of Cassia Fistula L., a tree 30 to 50 feet (9-15 M.) high, indigenous in the East Indies.

Description and Properties. - Cylindrical, 1 1/2 to 2 feet (45-60 Cm.) long, nearly 1 inch (25 Mm.) in diameter, blackish brown, somewhat veined, the sutures smooth, forming two longitudinal bands; indehiscent, internally divided transversely into numerous cells, each containing a reddish-brown, glossy, flattish-ovate seed imbedded in a blackish-brown sugary pulp; odor resembling that of prunes.

Dose. - 1-2 drams (4.0-8.0 Gm.) [1 dram (4 Gm.), U. S. P.].

Official Preparation

Confectio Sennae - Confectionis Seinnae - Confection of Senna. - Described under Senna.

Physiological Action and Therapeutics. - Cassia is a mild and pleasant laxative. It is seldom given alone, however, but forms an ingredient in the confection of senna.