title: Tolerance to active constituents of marihuana.
mesh_terms: D000818:Animals; D001522:Behavior, Animal / Q000187:drug effects*; D002188:Cannabis / Q000494:pharmacology*; D010856:Columbidae; D013759:Dronabinol / Q000008:administration & dosage / Q000494:pharmacology; D004361:Drug Tolerance; D005247:Feeding Behavior / Q000187:drug effects; D007273:Injections, Intramuscular; D007274:Injections, Intraperitoneal; D007858:Learning / Q000187:drug effects; D008297:Male; D009020:Morphine / Q000008:administration & dosage / Q000494:pharmacology; D051381:Rats; D011919:Rats, Inbred Strains
chemical_list: D009020:Morphine; D013759:Dronabinol