順勢療法有多安全？
迄今為止，有 12 項主要研究評估了順勢療法藥物的安全性，其中 11 項發現順勢療法是低風險的：一項社論2、一項審查3、一項前瞻性研究4、一項橫斷面研究5、一份組織報告6, 和一項文獻綜述11, 所有這些研究都得出結論，順勢療法是「安全的」。此外，六分之五的系統綜述得出的結論，支持順勢療法治療的相對安全性，不良反應的描述是輕度至中度和短暫的1,7,9,10,12。第六篇系統綜述8 是唯一一篇已發表論文，與其他綜述有顯著不同的負面結論；這通常被認為是由於方法論有缺陷。13,14,15,16
評估順勢療法藥物安全性的最新系統綜述和薈萃分析12 得出結論：
「……與接受順勢療法的患者相比，接受常規西藥和草藥治療的患者出現不良反應的比例明顯更高。」
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