CHICAGO (AP) — Medical marijuana has not been proven to work for many illnesses that state laws have approved it for, according to the first comprehensive analysis of research on its potential benefits.
The strongest evidence is for chronic pain and for muscle stiffness in multiple sclerosis, according to the review, which evaluated 79 studies involving more than 6,000 patients. Evidence was weak for many other conditions, including anxiety, sleep disorders, and Tourette’s syndrome and the authors recommend more research.
The analysis is among several medical marijuana articles published Tuesday in the Journal of the American Medical Association. They include a small study suggesting that many brand labels for edible marijuana products list inaccurate amounts of active ingredients. More than half of brands tested had much lower amounts than labeled, meaning users might get no effect.
BY LINDSEY TANNER : AP MEDICAL WRITER Jun 23, 12:01 PM EDT (for full article go to….http://hosted.ap.org/dynamic/stories/U/US_MED_MEDICAL_MARIJUANA_RESEARCH_5_THINGS?SITE=AP&SECTION=HOME&TEMPLATE=DEFAULT&CTIME=2015-06-23-11-51-43