493. Rosmarinus.—Rosemary. 493a. Oleum Rosmarini.—Oil of Rosemary.

493. ROSMARINUS.—ROSEMARY. The leaves of Rosmari'nus officina'lis Linné. Rigid, linear, obtuse at summit, margin entire; odor strong, balsamic, and camphoraceous.

ACTION AND USES.—Carminative, stimulant, diaphoretic, emmenagogue. Dose: 3 to 15 gr. (0.2 to 1 Gm.).

493a. OLEUM ROSMARINI, U.S.—OIL OF ROSEMARY. A volatile oil distilled from the fresh flowering tops of Rosmarinus officinalis Linné, yielding, when assay by official process, not less than 2.5 per cent. of ester, calculated as bornyl acetate (C₁₀H₁₇C₂H₃O₂) and not less than 10 per cent. of total borneol (C₁₀H₁₇OH).

DESCRIPTION.—It is a colorless or pale yellow liquid, having the characteristic odor of rosemary and a camphoraceous taste.

ACTION AND USES.—In moderate amounts acts as stimulant, aromatic and carminative. In local application, it is said to do good in the treatment of chronic rheumatism, sprains, etc.

OFFICIAL PREPARATIONS.

Tinctura Lavandulae Composita (0.2 per cent.) Dose: ½ to 2 fl. dr. (2 to 8 mils).

Linimentum Saponis (1 per cent.).

A Manual of Organic Materia Medica and Pharmacognosy, 1917, was written by Lucius E. Sayre, B.S. Ph. M.