PRODUCTION OF ANALGESIC SYNERGY BY CO-ADMINISTRATION OF SUB-ANALGESIC DOSES OF A .MU. OPIOID AGONIST AND A .KAPPA.-2 OPIOID AGONIST

摘要

An analgesic composition comprising a sub-analgesic dosage of a .mu.-opioid agonist or analog or derivative or pharmaceutically acceptable salts thereof and a sub-analgesic dosage of a 2 opioid agonist or analog or derivative or pharmaceutically acceptable salts thereof.