The rhizome of Zingiber officinale Roscoe (nat. ord. Sci-laminea).
India; cultivated in the tropics.
About 5 to 10 cm. long, 10 to 15 mm. broad, and 4 to 8 mm. thick, flattish, on one side lobed or clavately branched; deprived of the corky layer; pale, buff-colored, striate, breaking with a mealy, rather fibrous fracture, showing numerous small, scattered resin-cells and fibro-vascular bundles, the latter enclosed by a nucleus sheath; agreeably aromatic, and of a pungent and warm taste. Resembling Ginger. - Turmeric, which is yellow.
The chief constituents are - (1) An aromatic volatile oil, 3/4 to 2 per cent. giving the flavor. (2) Resin. (3) Gingerol, to which the pungent taste is due (Thresh).
Ginger is contained in Pulvis Rhei Compositus and Pulvis Aromaticus.
Dose, 5 to 15 gr.; .30 to 1.00 gm.
Fluid Extract of Ginger is used in Syrupus Zingiberis. Dose, 5 to 15 m.; .30 to 1.00 c.c.
2. Oleoresina Zingiberis. - Oleoresin of Ginger. By percolation with Ether, distillation, and evaporation of the residue.
Dose, 1/2 to 2 m.; .03 to .12 c.c.
3. Tinctura Zingiberis. - Tincture of Ginger. Ginger, 200. By percolation with Alcohol to 1000.
Tincture of Ginger is used in Trochisci Zingiberis. Dose, 1/4 to 1 fl. dr.; 1. to 4. c.c.
Dose, 1/2 to 2 fl. dr.; 2. to 8. c.c.
5. Trochisci Zingiberis. - Troches of Ginger. Tincture of Ginger, 20; Tragacanth, 4; Sugar, 130 gm.; Syrup of Ginger in sufficient quantity to make 100 troches.
Its action is the same as that of other substances containing aromatic volatile oils. It is chiefly used as a stomachic, carminative, and flavoring agent. The oleoresin is a useful addition to purgative pills to prevent griping.