Watch and Follow these three (3) easy steps to learn how to get medical marijuana in Canada from authorized producers under the Marihuana for Medical Purposes Regulations (or MMPR). Step 1) Consult with a Health Care Practitioner. Step 2) Obtain a Medical Document from your Health Care Practitioner. Step 3) Register and Order with a Licensed Producer. Visit MMJPR.ca for more details on How to get medical marijuana in Canada.