Summary
Homœopathic drug tests provide data on which drug pictures are based. Current drug
registration laws require proof of drug-specificity as well.
A brief description is given of Hahnemann's method, which should be kept in mind particularly
for tests on new drugs. It is however not suitable for statistical analysis. Problems
arise because of placebo symptoms, and the drug-specificity of individual symptoms
can only be expressed in probabilities.
Statistical analysis of homœopathic drug tests has to be based on comparison between
the totality of symptoms elicited during exhibition of the drug and the totality of
symptoms recorded on placebo. Simply counting the incidence of symptoms proved inadequate.
The model currently used in conjoint German and Austrian trials is presented for comment
and discussion. This also takes account of continued drug action and includes a number
of new parameters on which to base comparison.