汉防己甲素(以下简称汉甲素)治疗矽肺病疗效显著,这已为临床和实验室所证实。矽肺病人口服汉甲素三个月到半年,在x线胸片上便可显示好转。但停药经过三个月以上,部分病例的x线胸片出现“反跳”现象,即阴影重新变浓,团块又增大。停药两个月是否会出现“反跳”?若缩短停药期,药物在体内积蓄情况如何?已成为临床合 Tetrandrine (abbreviated as ginnermin) is effective in the treatment of silicosis, which has been confirmed by clinical and laboratory studies. Patients with silicosis were treated with anagen A for three months to six months, showing improvement on x-rays. However, after discontinuing the drug for more than three months, some cases of x-ray chest radiographs showed a phenomenon of “rebound”, that is, the shadows became thicker and the masses increased again. Will there be “rebounds” in the two months after the withdrawal? If the withdrawal period is shortened, how is the drug’s savings in the body? It has become clinically relevant.