Overarching principles for medical cannabis in rheumatology
For the rheumatologist counseling a patient who either is self-medicating or wants to start using medical cannabis, the Canadian Rheumatology Association created overarching principles as part of their position statement to guide decision-making for clinicians.
First, clinicians should know that cannabis shouldn’t be used as an alternative treatment for standard of care in rheumatology, and the CRA noted that patients aged under 25 years should not use cannabis. CRA also recommended that clinicians try currently available treatment strategies for common reasons patients seek to use medical cannabis, such as pain relief or a sleep aid, before attempting to use medical cannabis. The CRA noted long-term effects of medical cannabis are not known for patients with rheumatic diseases.
In an interview, Arthur Kavanaugh, MD, professor of medicine at the University of California, San Diego, and director of RWCS, said that CBD and cannabis “come up quite frequently” at his clinic. “Many patients have already tried CBD, especially the topical formulation, prior to discussing it with me. In general, I do not dissuade patients from trying CBD, especially topical.”
Typically, he said his practice situation gives him access to a counselor from the anesthesia department with “significant expertise” in dosing and formulations. “It would be great if there were proper controlled trials of specific formulations to allow us to have real scientific data that may help the patients make optimal choices.”
One issue that is brought up by patients is cost. “These preparations can be relatively expensive,” Dr. Kavanaugh said, but noted that this is also a consideration when patients decide to use any therapy.
Dr. Troum reported having financial relationships with eight pharmaceutical companies.