The present invention relates to pharmaceutical combinations of opioid and
non-opioid analgesics in an intimate admixture with caffeine and an
analgesic from a series of N-acylated 4-hydroxyphenylamine derivatives,
linked via an alkylene bridge to the nitrogen atom of a
1,2-benzisothiazol-3(2H)-one 1,1-dioxide group and methods for their use
to alleviate pain in mammals. The analgesic combinations exhibit enhanced
analgesic potency and are free from antipyretic activity, do not suppress
blood coagulation, and have little hepatotoxic effect.