The active ingredient in pot that gets you high can calm agitation in people with advanced Alzheimer's disease, a small new study suggests.

Canadian researchers found that a form of synthetic THC significantly decreased agitation in a small group of Alzheimer's patients, working even better than the drugs now used.

"This is the first clinical trial to show that a cannabinoid can decrease agitation," said lead researcher Krista Lanctot, a senior scientist at Sunnybrook Health Sciences Center in Toronto.

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Dennis Thompson ~ HealthDay News via WebMD.com ~