494. THYMUS, N.F.—GARDEN THYME. The leaves of Thy'mus vulga'ris Linné. Carminative, tonic, antispasmodic. Dose: 30 to 60 gr. (2 to 4 Gm.).
494a. OLEUM THYMI, U.S.—OIL OF THYME. Used as an antiseptic, etc. A volatile oil distilled from the flowering plant of Thymus vulgaris Linné, containing about 20 per cent. by volume of phenols. It is a colorless red liquid having a characteristic odor and taste. Specific gravity is from 0.894 to 0.929. It is soluble in 2 volumes of 80 per cent. alcohol.
PROPERTIES.—Commercially "red" and "white" oil are distinguished. The latter, however, is not obtained by simple rectification of the ordinary kind. "White" thyme oil, offered at a lower price than the "red," is apt to contain much turpentine oil.
THYMOL.—(See Ajowan, 389.)