矽肺是长期接触含矽粉尘所致的慢性病,根据其病程和病变的特点,对矽肺的治疗需要长期给药始能显示一定的疗效,但在疗效较好的药物中,如高分子P_(204)、含苯环抗矽-14及汉防己甲素等,长期大量服用能否致癌突变的问题,一直为人们所关注。为此,我们于1980年作了如下试验。 Silicosis is a chronic disease caused by long-term exposure to silica-containing dust. According to the characteristics of its disease course and disease, long-term administration of silicosis can show certain curative effect. However, in the drugs with better curative effect, such as polymer P 204 ), Containing benzene ring anti-silicon -14 and tetrandrine, etc., long-term large-scale use of carcinogenic mutations can cause cancer, has been for people’s attention. To this end, we made the following test in 1980.