WEAK BASE SALTS

摘要

Pharmaceutical compositions comprising a salt of a weak base compound of formula: wherein X is hydrogen, halogen, alkyl of less than 7 carbon atoms or alkoxy of less than 7 carbon atoms; n is a positive integer of less than 4; Y is hydrogen, chlorine, nitro, methyl, ethyl or oxychloro; R is hydrogen, alkylaminocarbonyl wherein the alkyl group has from 3 to 6 carbon atoms or an alkyl group having from 1 to 8 carbons and R2 is 4-thiazolyl, NHCOOR1 wherein R, is aliphatic hydrocarbon of less than 7 carbon atoms, or an alkyl group of less than 7 carbon atoms; one or more free acids; and optional pharmaceutical additives are provided.