1药物研究进展1.1中枢性依赖性镇咳药物主要指吗啡类生物碱及其衍生物,具有十分明显的镇咳作用。由于该类药物具有依赖性,因此仅在其他治疗无效时短暂使用。常用药物为可待因,该药直接抑制延脑中枢,镇咳作用强而迅速,同时亦有镇痛和镇静作用。用于各种原因所致的剧烈干咳和刺激 1 drug research progress 1.1 Central dependence Antitussive drugs mainly refers to morphine alkaloids and their derivatives, has a very clear antitussive effect. Because of their dependence, these drugs are only briefly used if other therapies are not effective. Commonly used drugs for codeine, the drug directly inhibits the brain center, antitussive strong and rapid, but also analgesic and sedative effects. For a variety of reasons caused by severe dry cough and irritation