title: Antagonism between morphine and the polypeptides ACTH, ACTH1-24 and beta-MSH in the nervous system.
mesh_terms: D000324:Adrenocorticotropic Hormone / Q000494:pharmacology*; D000818:Animals; D001001:Anura; D001794:Blood Pressure / Q000187:drug effects; D004305:Dose-Response Relationship, Drug; D004361:Drug Tolerance; D006801:Humans; D066298:In Vitro Techniques; D009074:Melanocyte-Stimulating Hormones / Q000494:pharmacology*; D009020:Morphine / Q000037:antagonists & inhibitors*; D051381:Rats; D011930:Reaction Time / Q000187:drug effects; D013116:Spinal Cord / Q000502:physiology; D013239:Stereotyped Behavior / Q000187:drug effects; D013623:Tail / Q000187:drug effects
chemical_list: D009020:Morphine; D000324:Adrenocorticotropic Hormone; D009074:Melanocyte-Stimulating Hormones