According to one study involving 96 cancer patients receiving supportive cancer care, the data support the safety and effectiveness of medical marijuana as a complementary option for improving pain control, appetite and quality of life for cancer patients. The top three adverse events of this study included drowsiness, low energy and nausea. (Note: other studies indicate that chemotherapy-induced nausea and vomiting is ameliorated by medical marijuana.)
Safety and effectiveness of medical cannabis as a complementary option for supportive cancer care: Results from the Cannabis Pilot Project.
Antonio Vigano, Saro Aprikian, Popi Kasvis, Virginie Bacis, Amna Al Harrasi, Nathalie M Aubin, MariaLuisa Vigano, and Manuel Borod
Journal of Clinical Oncology 2020 38:15_suppl, 12106-12106