The presence in normal human urine of a substance or substances antagonizing histamine, 5-hydroxytryptamine, and acetylcholine (preliminary report).
D000109:Acetylcholine; D018926:Anti-Allergic Agents; D018680:Cholinergic Antagonists; D006632:Histamine; D006634:Histamine H1 Antagonists / Q000652:urine*; D006801:Humans; D012701:Serotonin; D012702:Serotonin Antagonists; D014556:Urine / Q000737:chemistry*
D018926:Anti-Allergic Agents; D018680:Cholinergic Antagonists; D006634:Histamine H1 Antagonists; D012702:Serotonin Antagonists; D012701:Serotonin; D006632:Histamine; D000109:Acetylcholine
ACETYLCHOLINE/antagonists; ANTIHISTAMINICS/urine; SEROTONIN/antagonists; URINE/chemistry