The uses with the strongest evidence in the medical literature were for nausea and vomiting caused by chemotherapy and cancer pain. “I work with patients undergoing cancer therapy,” Abrams says. “I tell them, ‘Go to the dispensary, tell them what you’re trying to treat, and ask what works best.’ ” Almost all patients surveyed reported using medical cannabis every day. The vast when will marijuana be decriminalized in canada majority of participants (147; 93.6%) did not feel they have a dependency or addiction to cannabis. Eleven patients (7%) reported that they needed much less or a little less cannabis than when they started, 41 (26.1%) patients reported needing about the same now as when they started, 35 (22.3%) patients reported needing a little more or much more than when they started, and 2 (1.3%) patients reported other. Many patients (68, 43.3%) reported that their use depends on their symptoms. Most participants – 75.2% – said that they had used marijuana before receiving their MMJ card.