Chloride,Methacholine
《英文msh詞典》Chloride,Methacholine
[入口詞] Chloride,Methacholine
[主題詞] Methacholine Chloride
[藥動學] Parasympathomimetics
[英文釋義] A quarternary ammonium parasympathomimetic agent with the muscarinic actions of ACETYLCHOLINE. It is hydrolysed by ACETYLCHOLINESTERASE at a considerably slower rate than ACETYLCHOLINE and is more resistant to hydrolysis by nonspecific CHOLINESTERASES so that its actions are more prolonged. It is used as a parasympathomimetic bronchoconstrictor agent and as a diagnostic aid for bronchial asthma. (From Martindale,The Extra Pharmacopoeia,30th ed,p1116)