Cocain

(kof -kah-in, or kof-kdn) [S.A., coca], C17H2lN04. The chief alkaloid of Erythroxylon coca. It is at first stimulant and afterward narcotic, and resembles caffein in its action on the nerve-centers, and atropin in its effects on the respiratory and circulatory organs. Its long continued use (cocain-habit) is followed by insomnia, decay of moral and intellectual power, emaciation, and death. It is a local anesthetic when applied to the surface of mucous membranes or given hypodermically. Applied to the conjunctiva of the eye it causes also dilatation of the pupil and paralysis of the function of accommodation. Dose gr. ^-ij (0.008-0. 13). C, Ceratum, I in 30, for burns, etc. C. Citras, used to stop toothache. C. Hydrochloras, CnH21N04Cl, most commonly used for local anesthesia in 2-8 per cent, solution. Dose, internally, gr. x/%-\) (0.008-0.13). C. Hydrochlorat., ch226.xhtml l 197