MedPage Today (3/19) reports a study found that biweekly, “low-dose treatment with lysergic acid diethylamide (LSD) failed to improve symptoms of attention deficit-hyperactivity disorder (ADHD) in adults.” Researchers concluded, “Although there are reports of microdosing effects by users, this first placebo-controlled trial in patients did not find such effects. Thus, expectancy and placebo effects are likely playing an important role in the perceived effects of microdosing psychedelics.” Moreover, they added, “A longer study duration would not have been likely to produce different results. We cannot exclude that different doses or daily dosing would be effective.” The study was published in JAMA Psychiatry.
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