The invention provides—opioid receptor agonists that are analgesic agents and that promote diminished side effects relative to a comparably effective dose of morphine. The side effects that are absent or attenuated include one or more of the following: constipation, respiratory depression, tolerance, dependence, nausea, confusion, sedation, hypotension, and post-treatment withdrawal symptoms.
本发明提供的阿片受体激动剂是一种镇痛剂,与同等有效剂量的
吗啡相比,副作用较小。没有或减轻的副作用包括以下一种或多种:便秘、呼吸抑制、耐受性、依赖性、恶心、精神错乱、镇静、低血压和治疗后戒断症状。