A randomized, placebo-controlled crossover trial of 25 patients with severe dementia across five Geneva long-term care facilities found that THC/CBD oil, dosed up to 20 mg THC and 40 mg CBD daily, significantly reduced as-needed psychotropic medication use compared with placebo, The Marijuana Herald reports. The trial, published in Age and Ageing, found no significant difference in its primary agitation measure, though researchers noted the treatment was well tolerated with no serious drug-related adverse events.