The first U.S. clinical trials in more than 20 years on the medical efficacy of marijuana found that pot helps relieve pain and muscle spasms associated with multiple sclerosis and certain neurological conditions, according to a report released Wednesday by a University of California research center.
The results of five state-funded scientific clinical trials came 14 years after California voters passed a law approving marijuana for medical use and more than 10 years after the state Legislature passed a law that created the Center for Medicinal Cannabis Research at UC San Diego, which conducted the studies.
Full story: Clinical trials show medical benefits of pot