Noradrenergic mechanisms within the raphe and the development of partial tolerance to morphine in cats.
D000818:Animals; D001522:Behavior, Animal / Q000187:drug effects; D001921:Brain / Q000502:physiology*; D004361:Drug Tolerance; D009020:Morphine / Q000494:pharmacology*; D009638:Norepinephrine / Q000494:pharmacology / Q000502:physiology*; D011433:Propranolol / Q000494:pharmacology; D051381:Rats; D013997:Time Factors
D009020:Morphine; D011433:Propranolol; D009638:Norepinephrine