guarana

(gwah-rah’nah) [Tupi-Guarani]. A dried paste prepared from the seeds of Pawllin’ia sor’- bilis, a tree of Brazil: a nerve stimulant, useful in headache. Dose, 1-2 dr. (4-8 gm.); of fluidextract, 5-30 min. (0.333-2 ¢.c.). (gwah-rah’nin). An alkaloid, CsHyo- N,O,, from guarana, nearly identical with caffein. Dose, 1-3 gr. (0.066-0.199 gm.).