1·A noncompetitive antagonist prevents the agonist from producing any effect at a given receptor site.
非竞争性拮抗剂可阻止激动剂在特定受体部位产生任何效应。
2·It is a competitive antagonist for the muscarinic acetylcholine receptor.
这是一个竞争的毒蕈碱型乙酰胆碱受体拮抗剂。
3·The thing is to know the nature of your antagonist.
关键是知道的性质，您的拮抗剂。
4·The treatment of coronary artery spasms may involve a calcium antagonist.
治疗冠状动脉痉挛可能涉及钙拮抗剂。
5·Half were enrolled on the basis of a physician's judgment that a vitamin K antagonist was inappropriate for the patient; no strict case definition for "unsuitable" was used.
有一半入选者是基于医生对于其不适于维生素K拮抗剂治疗的判断而入选，并没有所谓严格的“不适宜”标准被使用。