Clinical Homeopathic use of RNA: evidence from two provings

Two homeopathic drug provings (HDPs) of RNA have been published. The methods are reviewed. Our method is double-blind and placebo-controlled, conforms to GCP and includes run-in and follow-up phases. Symptoms are selected from diaries according to predefined criteria. The results of the provings are compared with each other and with the homeopathic clinical use of RNA. At this stage it is difficult to draw conclusions concerning the clinical use of RNA. Further HDPs are required, they should follow GCP and standard, transparent protocols.