In a story published Monday, Internal Medicine News reports that according a survey of 350 California users of medical marijuana, about two-thirds of them substitute cannabis for prescription drugs. According to the survey, “Cannabis offered better symptom control with fewer side effects than did prescription drugs.” From the article: “Instead of having a pain medication, an antianxiety medication, and a sleep medication, they are able to just use cannabis, and that controls all of those symptoms,” said Amanda Reiman, Ph.D., the director of research and social services at the Berkeley center