一、植物研究的发展动态从药物研究的进展规律看,五十年代前,药物研究的重点是合成药。五十年代后,发现罗芙木和利血平对高血压的治疗作用后,对植物药物的研究又被重新重视起来。目前,一些化学合成药已到了走头无路的地步,许多品种接连被淘汰。其主要原因是:有的毒付作用大,有的用后产生抗药性,长期应用效果不好,还有的产生致癌作 First, the development of plant research from the law of the progress of drug research, before the fifties, drug research focused on synthetic drugs. After fifties, after the discovery of the therapeutic effects of Roffe and reserpine on hypertension, research on plant drugs was re-emphasized. At present, some chemical synthetic drugs have reached a point where they are nowhere to go and many varieties have been eliminated one after another. The main reasons are: some of the poisonous effects are large, some produce drug resistance after use, the long-term application effect is not good, and some produce carcinogenic