最近二十多年来,新药的研究正以空前的速度进行。在許多国家中一些制药企业本身設有研究机构,进行新药研究。估計共每年試驗样品在十万种以上,推荐到临床的可有数百种之多,共中具有一定优点或属完全新型而有发展前途的約有四十种左右。新药的发展对医学实践和理論研究都有重大意义,但同时也暴露出不少問題。在資本主义国家,药厂推荐新药 In the recent two decades or more, the research on new drugs is taking place at an unprecedented rate. In many countries some pharmaceutical companies themselves have research institutes that conduct new drug research. It is estimated that a total of more than 100,000 test samples per year, recommended to the clinical there may be hundreds of species, the total has some advantages or is completely new and about 40 promising development prospects. The development of new drugs is of great significance to both medical practice and theoretical research, but it also exposes many problems. In capitalist countries, pharmaceutical companies recommend new drugs