Abstract Introduction. Medical cannabis (MC) is becoming increasingly popular for the treatment of chronic pain conditions. In this study, we evaluated the effect of MC treatment on pain level and quality of sleep of patients with different medical conditions at the rheumatology clinic. Methods. Patients licensed for the use of MC at the rheumatology clinics at different settings were located and contacted. Their demographic and clinical parameters were documented, including type of medical cannabis consumed, way of consumption, and current monthly consumed amount. These patients were contacted by phone and asked about the effect on pain level and quality of sleep. Results. A total of 351...