In March 2019 dermatologists from Canada published their review of dermatology-related uses of medical cannabis. They stated that in the USA, cannabis is approved to treat a variety of dermatological conditions, such as psoriasis, lupus, nail-patella syndrome, and severe pain, despite the lack of evidence as to its effectiveness. It was also noted that the dermatological indications approved varies by State. The Canadian regulatory authority for medicines, Health Canada, lists psoriasis, dermatitis, and pruritus as possible uses for cannabis but does not currently approve or support its use. Canadian, American and European pharmacy or dispensary websites were analysed and this had shown that numerous unsubstantiated claims were being made and advertised to the public. The dermatologists called for more research on cannabis use in different medical conditions so that individuals could make a better informed decision as to whether or not to try cannabis.
Lim M, Kirchhof MG. Dermatology-Related Uses of Medical Cannabis Promoted by Dispensaries in Canada, Europe, and the United States. J Cutan Med Surg. 2019 Mar/Apr;23(2):178-184