Manulife has partnered with Shoppers Drug Mart to offer enhanced medical marijuana insurance coverage Shoppers Drug Mart pharmacists at an Ontario-based centre will help approved customers They will explain different strains of medical marijuana and different ways to take it Manulife customers will be able to choose treatment that is covered under their plan The insurance company is already offering medical cannabis coverage to clients on a selective basis Sun Life Financial Inc. says it will add coverage as an option for its group benefits plans Great-West Life plans to expand medical marijuana coverage options in group plans The most recent numbers show there were more than 235,000 registered medical marijuana patients across Canada