Aspirin C_{6}H·_{4}O(CH_{3}CO)·COOH· 1:2 = C_{9}H_{8}O_{4}, the acetyl
derivative of salicylic acid.
Actions and Uses.—It acts like salicylic acid, over which it possesses
the advantage of producing less of the undesired local and systemic side
effects, on account of the slow liberation of the salicylic acid. It
passes the stomach unchanged, the decomposition beginning in the
intestine. Dosage.—0·3 to 1 gramme (5 to 15 grains) in capsules or
wafers, or dissolved in sweetened water or dry on the tongue, followed
by a swallow of water. The powder should be dispensed in waxed paper.
Manufactured by Farbenfabriken, vorm. Friedr. Bayer & Co., Elberfeld,
Germany (Continental Color & Chemical Co., New York).