SACRAMENTO, Calif. (AP) — The first U.S. clinical trials in more than two decades on the medical benefits of marijuana confirm pot is effective in reducing muscle spasms associated with multiple sclerosis and pain caused by certain neurological injuries or illnesses, according to a report issued Wednesday.Igor Grant, a psychiatrist who directs the Center for Medicinal Cannabis Research at the University of California, San Diego, said five studies funded by the state involved volunteers who were randomly given real marijuana or placebos to determine if the herb provided relief not seen from traditional medicines.
“There is good evidence now that cannabinoids may be either an adjunct or a first-line treatment,” Grant said at a news conference where he presented the findings.
The California Legislature established the research center in 2000 to examine whether the therapeutic claims of medical marijuana advocates could withstand scientific scrutiny. In 1996, state voters became the first in the nation to pass a law approving pot use for medical purposes.Thirteen other states have followed suit, but California is the only one so far to sponsor medical marijuana research. After 10 years and nearly $9 million, the Center for Medicinal Cannabis Research is preparing to wrap up its work next year.
Along with the studies on muscle spasms and pain associated with spinal cord injuries and AIDS, the center also has funded research on how marijuana affects sleep and driving, limb pain due to diabetes, and whether inhaling vaporized cannabis is as effective as smoking it. A laboratory study supported by the center examined if pot could be helpful in treating migraine headaches and facial pain. In that study, rats given a cannabis-like drug exhibited reduced activity of nerve cells that transmit pain.
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