title: Tolerance to morphine analgesia and immobility measured in rats by changes in log-dose-response curves.
mesh_terms: D000700:Analgesics; D000818:Animals; D004305:Dose-Response Relationship, Drug; D004361:Drug Tolerance; D008297:Male; D009020:Morphine / Q000494:pharmacology* / Q000633:toxicity; D009043:Motor Activity / Q000187:drug effects*; D051381:Rats; D011930:Reaction Time / Q000187:drug effects; D012640:Seizures / Q000139:chemically induced
chemical_list: D000700:Analgesics; D009020:Morphine