Most marijuana medicinal benefits are inconclusive, wide-ranging study finds

Study of 10,000 reports into cannabis finds only enough evidence to support therapeutic use for chemotherapy patients, chronic pain and multiple sclerosis

There is not enough research to reach conclusive judgments on whether marijuana can effectively treat most of the symptoms and diseases it is advertised as helping, according to a wide-ranging US government study.

The same is also true of many of the risks said to be associated with using cannabis, the study finds.