药源性脑病是医源性脑病中最多见的一种,大部分是临床常用药物,由于药物使用不当、毒性作用及过敏反应等引起,现分类叙述如下:1.维生素类:家长认为维生素是补品,服用越多越好,医生也忽视了维生素的副作用,致使近年来维生素中毒的报告时有发生。维生素A一次大剂量(超过30万IU)或长期服用均可引起颅高压症状。如发现立即停药,一般1～2周症状可逐渐消失。维 Drug-induced encephalopathy is the most common type of iatrogenic encephalopathy, most of them are clinically used drugs, due to improper use of drugs, toxic effects and allergic reactions caused by the following categories are described: 1. Vitamins: Parents think vitamins Supplements, take more as possible, the doctor also ignored the side effects of vitamins, resulting in vitamin poisoning reports in recent years have occurred. A large dose of vitamin A (more than 300,000 IU) or long-term use can cause symptoms of intracranial hypertension. If found immediately discontinued, usually 1 to 2 weeks symptoms can gradually disappear. dimension