Walach H
University of Freiburg, Rehabilitation Psychology, F.R.G.
J Psychosom Res. 1993 Dec;37(8):851-60. doi: 10.1016/0022-3999(93)90174-e.
A basic tenet of homoeopathy is that remedies which do not contain active molecules can have effects on the healthy human organism, by virtue of the specific preparation process of stepwise dilution and succussion, called potentization. The claim that a so called high 'potency' of a homoepathic remedy, Belladonna C30, could produce effects different from placebo, was investigated in a pilot study. In a double-blind crossover trial, 4 weeks of Belladonna C30 were compared to 4 weeks of placebo in 47 healthy volunteers. Data were collected daily. The number and types of changes were recorded into a predefined category system. Single-case evaluation showed differences between the two experimental phases for 21 subjects. Group evaluation showed no clearcut differences. The claim that homoeopathic potencies can produce symptoms other than placebo in healthy subjects should be put to further scrutiny.
顺势疗法的一个基本原则是，不含活性分子的药物，凭借逐步稀释和振荡的特定制备过程（称为增效作用），可对健康人体产生影响。一项初步研究对一种名为颠茄C30的顺势疗法药物所谓的高“药力”能否产生不同于安慰剂的效果进行了调查。在一项双盲交叉试验中，对47名健康志愿者进行了为期4周的颠茄C30与4周安慰剂的对比研究。每天收集数据。将变化的数量和类型记录到一个预先定义的分类系统中。单病例评估显示，21名受试者的两个实验阶段存在差异。组评估未显示出明显差异。关于顺势药力在健康受试者中能产生除安慰剂效应之外的症状这一说法，应进一步加以审视。
