title: Increase in paradoxical sleep in the cat after phentolamine, an alpha-adrenoreceptor antagonist.
mesh_terms: D000818:Animals; D002415:Cats; D007274:Injections, Intraperitoneal; D010646:Phentolamine / Q000008:administration & dosage / Q000494:pharmacology*; D012895:Sleep, REM / Q000187:drug effects*
chemical_list: D010646:Phentolamine