This invention relates to opioid peptides, to pharmaceutical compositions containing the peptides, and to methods for controlling pain by administering the peptides or pharmaceutical compositions. The peptides have a high degree of selectivity for the &mgr;-opioid receptor. Although they are highly lipophilic, the peptides do not readily cross the blood brain barrier (BBB). Because the peptides act peripherally, they substantially avoid the side effects associated with central analgesic action.
本发明涉及阿片肽、含有该肽的药物组合物以及通过施用该肽或药物组合物控制疼痛的方法。
多肽对阿片受体具有高度选择性。虽然
多肽具有很高的亲脂性,但并不容易穿过血脑屏障(BBB)。由于
多肽作用于外周,它们大大避免了与中枢镇痛作用相关的副作用。