近二十五年来,肿瘤化学治疗实验和临床研究有了迅速发展,但目前尚缺乏对肿瘤细胞有特异选择作用的药物,因之在显效的同时往往伴有一定副作用。在抗肿瘤药物的副作用中,以造血障碍最重要。自第一个抗癌药物氮芥问世以后的第四年,就有人开始研究用半胱氨酸缓解其骨髓抑制的可能性。 In the past 25 years, rapid progress has been made in the experimental and clinical research of tumor chemotherapy. However, there is currently a lack of drugs that have a specific selective effect on tumor cells, and these are often accompanied by certain side effects. In the side effects of anti-tumor drugs, hematopoietic disorders are the most important. In the fourth year after the first anticancer drug, nitrogen mustard was introduced, some people began to study the possibility of using cysteine ​​to relieve bone marrow suppression.