Pharmaceutical composition having synergistic analgesic activity

摘要

Pharmaceutical compositions of synergistic analgesic activity are provided which comprise an azido compound of the following formula: <IMAGE> or a salt thereof wherein R is hydrogen, methyl, ethyl, acetyl or morpholino-methyl and a compound of the formula: <IMAGE> wherein R1, R2, R3 are hydrogen or lower alkyl and the dotted lines represent hydrogenated bonds or olefinic bonds and pharmaceutically acceptable salts and quaternary salts thereof, in admixture with suitable inert solid or liquid carriers or dilutents.