[Does cannabis have a therapeutic value?]

Among the numerous therapeutic applications claimed for cannabis, many come from anecdotal reports, a few have been subjected to clinical double-blind trials with comparison to a reference treatment. Their results are less than convincing and larger multicentre assays are needed to assess our knowledge. Researches on endogenous cannabinoids as well as on cannabinoids receptors agonists and antagonists may lead to discover new useful drugs devoid of the central nervous system unwanted effects of cannabis.