临床常用解痉药有阿托品、东莨菪碱、颠茄,为M受体阻断剂,能阻滞胆碱受体,使递质乙酰胆碱不能与受体结合而呈现与拟胆碱药相反的作用,如松弛胃肠道平滑肌、抑制腺体分泌、散大瞳孔、加快心率等。临床合理应用具有用途广、起效快、疗效肯定且价格低廉的特点。就其临床用途 Antispasmodic drugs commonly used clinically atropine, scopolamine, belladonna, M receptor blockers, can block the cholinergic receptors, so that the transmitter can not be combined with the receptor acetylcholine and quinetic drugs present the opposite effect, such as Relax the gastrointestinal smooth muscle, inhibit glandular secretion, dilated pupils, speed up heart rate and so on. Clinical application of a wide range of purposes, rapid onset, efficacy and low prices affirmed. Its clinical use