Cannabidiol, known as CBD, reduced cravings and anxiety in patients being treated for heroin addiction in a study published in the American Journal of Psychiatry on Tuesday. Other medications often prescribed for opioid addiction, such as buprenorphine and methadone, also work by reducing cravings for the drug. But in many cases, these medications are not pursued as part of the patient's treatment, because their use is highly regulated and restricted; CBD, meanwhile, is available in many over-the-counter products. The study used an FDA-approved cannabis-based medication called Epidiolex in order to control the precise amounts of CBD being administered. Researchers will need to study the long-term effectiveness of CBD but expressed optimism over the initial results.

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