Hypophysectomy reduces behavioral activation to morphine in the rat.
D000818:Animals; D003907:Dexamethasone / Q000494:pharmacology; D004305:Dose-Response Relationship, Drug; D008297:Male; D009020:Morphine / Q000494:pharmacology*; D009043:Motor Activity / Q000187:drug effects*; D010902:Pituitary Gland / Q000502:physiology*; D051381:Rats
D009020:Morphine; D003907:Dexamethasone