title: Contraction of the rat colon by sympathomimetic amines: effect of methysergide and 5-HT desensitization.
mesh_terms: D000109:Acetylcholine / Q000494:pharmacology; D000317:Adrenergic alpha-Antagonists / Q000494:pharmacology; D000319:Adrenergic beta-Antagonists / Q000494:pharmacology; D000818:Animals; D003106:Colon / Q000187:drug effects*; D004347:Drug Interactions; D004837:Epinephrine / Q000494:pharmacology; D005260:Female; D066298:In Vitro Techniques; D008297:Male; D008680:Metaraminol / Q000494:pharmacology; D008784:Methysergide / Q000494:pharmacology*; D009119:Muscle Contraction / Q000187:drug effects*; D010096:Oxprenolol / Q000494:pharmacology; D010646:Phentolamine / Q000494:pharmacology; D010656:Phenylephrine / Q000494:pharmacology; D051381:Rats; D012701:Serotonin / Q000494:pharmacology*; D013566:Sympathomimetics / Q000494:pharmacology*
chemical_list: D000317:Adrenergic alpha-Antagonists; D000319:Adrenergic beta-Antagonists; D013566:Sympathomimetics; D010656:Phenylephrine; D012701:Serotonin; D010096:Oxprenolol; D008680:Metaraminol; D000109:Acetylcholine; D008784:Methysergide; D004837:Epinephrine; D010646:Phentolamine