癌症的药物预防研究历史较短,有些尚处于探索和实验阶段。鉴于人类寿命较长,干扰因素较多,加之药物预防是近年发展的课题,因此药物对人类癌症的预防作用很难得出结论。但根据现有资料表明,药物预防是很有希望的。 The history of drug prevention for cancer is relatively short, and some are still at the exploratory and experimental stage. In view of the long life span of human beings and the large number of interference factors, combined with the fact that drug prevention is a subject of recent development, it is difficult to draw conclusions on the preventive effect of drugs on human cancers. However, according to available data, drug prevention is promising.