Can psychedelics help stutterers?
Synesthesia, hallucinations, euphoria. The documented effects of classic psychedelic substances such as psilocybin (magic mushrooms) or lysergic acid diethylamide (LSD) are vast. With their usage common and their effects profound, a team of speech and psychology researchers explored the impact of psychedelics on people who stutter, finding evidence that users see some benefits.
Source: medicalxpress.com