This section is from the book "Materia Medica Pharmacy, Pharmacology And Therapeutics", by W. Hale White. Also available from Amazon: Materia Medica Pharmacy, Pharmacology And Therapeutics..
Chirata. - Synonym. - Chiretta. The entire plant, Swertia Chirata Hamilton (nat. ord. Gentianeae).
Mountains of Northern India.
Root nearly simple, about 7 cm. long; stem branched, nearly I meter long, slightly quadrangular above; containing a narrow wood-circle and a large yellowish pith. Leaves opposite, sessile, ovate, entire five-nerved. Flowers numerous, small, with a four-lobed calyx and corolla. The whole plant smooth, pale brown, inodorous, and intensely bitter. Resembling Chirata. - Lobelia, which is not bitter.
Dose, 1/2 to 1 dr.; 2. to 4. gm.
a. Tinctura Chiratae. - Tincture of Chirata. Chirata, 100; by maceration and percolation with Alcohol and Water to 1000. Dose, 1/2 to 2 fl. dr.; 2. to 8. c.c.