长期应用神经阻滞剂治疗的精神病患者,由于产生了游离基的毒性作用,使细胞膜稳定性受损,而引起神经末梢结构的改变,进而引起迟发性运动障碍(TD)。维生素E是一种抗氧化剂,有稳定细胞膜的作用,可预防组织的损伤和死亡,而且可预防缺血引起的脑损害。作者采用随机交叉的方法以维 Long-term use of nerve blockers in patients with mental illness, due to the toxic effects of free radicals, the stability of the cell membrane damage, causing changes in the structure of nerve endings, which in turn cause tardive dyskinesia (TD). Vitamin E is an antioxidant that stabilizes cell membranes and prevents tissue damage and death, as well as preventing ischemic brain damage. The author uses a random cross method to dimension