[Antagonistic actions of gamma-aminobutyric acid and its derivatives against acetylcholine, 5-hydroxytryptamine, nicotine and histamine have been observed in the guinea pig ileum].
D000109:Acetylcholine; D000596:Amino Acids / Q000494:pharmacology*; D018680:Cholinergic Antagonists; D006168:Guinea Pigs; D006632:Histamine / Q000378:metabolism*; D007082:Ileum; D009538:Nicotine / Q000037:antagonists & inhibitors*; D012701:Serotonin; D012702:Serotonin Antagonists; D005680:gamma-Aminobutyric Acid
D000596:Amino Acids; D018680:Cholinergic Antagonists; D012702:Serotonin Antagonists; D012701:Serotonin; D005680:gamma-Aminobutyric Acid; D009538:Nicotine; D006632:Histamine; D000109:Acetylcholine
ACETYLCHOLINE/antagonists; AMINO ACIDS/pharmacology; HISTAMINE/metabolism; NICOTINE/antagonists; SEROTONIN/antagonists