title: Structure-activity relationship and pharmacology of the highly selective mu-opioid agonist, morphiceptin.
mesh_terms: D000698:Analgesia; D000818:Animals; D004361:Drug Tolerance; D004723:Endorphins / Q000378:metabolism / Q000494:pharmacology*; D009020:Morphine / Q000494:pharmacology; D009130:Muscle, Smooth / Q000187:drug effects; D011957:Receptors, Opioid / Q000187:drug effects / Q000378:metabolism*; D017450:Receptors, Opioid, mu; D013329:Structure-Activity Relationship
chemical_list: D004723:Endorphins; D011957:Receptors, Opioid; D017450:Receptors, Opioid, mu; D009020:Morphine; C028889:morphiceptin