Antagonism of the drug induced behavioural sleep in chicks.
D000818:Animals; D001522:Behavior, Animal / Q000187:drug effects; D001812:Blood-Brain Barrier; D002490:Central Nervous System / Q000187:drug effects; D002645:Chickens; D003000:Clonidine / Q000037:antagonists & inhibitors / Q000494:pharmacology; D003533:Cyproheptadine / Q000494:pharmacology; D007093:Imidazoles / Q000037:antagonists & inhibitors*; D008297:Male; D009638:Norepinephrine / Q000037:antagonists & inhibitors*; D009647:Normetanephrine / Q000037:antagonists & inhibitors / Q000494:pharmacology; D010646:Phentolamine / Q000494:pharmacology*; D012702:Serotonin Antagonists; D012890:Sleep / Q000187:drug effects*; D014043:Tolazoline / Q000494:pharmacology*
D007093:Imidazoles; D012702:Serotonin Antagonists; D009647:Normetanephrine; D003533:Cyproheptadine; D014043:Tolazoline; D003000:Clonidine; D009638:Norepinephrine; D010646:Phentolamine