Systematically Testing the Evidence on Marijuana

Agitation in Dementia Can Be Helped by Medical Cannabis, Study Suggests

Source: New York Times

Jul 31, 2026 | Research

A combination of THC and CBD eased symptoms in an especially frail population: patients with advanced dementia near the end of their lives. The preliminary results of the trial involving 120 patients with advanced dementia near the end of their lives, presented Tuesday at the Alzheimer’s Association International Conference in London, found that most of the patients receiving the THC/CBD treatment experienced similar benefits. After 12 weeks, agitation eased for nearly 90 percent of those participants, while less than a quarter of those who received a placebo exhibited less agitation.

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