title: Induction of tolerance to the analgesic action of lipotropin in C-fragment.
mesh_terms: D000698:Analgesia; D000818:Animals; D004357:Drug Synergism; D004361:Drug Tolerance; D007276:Injections, Intraventricular; D008297:Male; D009020:Morphine / Q000494:pharmacology; D009419:Nerve Tissue Proteins / Q000494:pharmacology*; D009842:Oligopeptides / Q000494:pharmacology; D010121:Oxytocin / Q000494:pharmacology; D010455:Peptides / Q000008:administration & dosage / Q000494:pharmacology*; D051381:Rats; D013997:Time Factors; D008083:beta-Lipotropin / Q000008:administration & dosage / Q000494:pharmacology
chemical_list: D009419:Nerve Tissue Proteins; D009842:Oligopeptides; D010455:Peptides; D010121:Oxytocin; D009020:Morphine; D008083:beta-Lipotropin