A peer-reviewed study published in Comprehensive Psychiatry found that a single 10-milligram oral dose of psilocybin significantly reduced obsessive-compulsive disorder symptoms in 19 adults, with ...

The case sample included 433 patients (227 males and 206 females) diagnosed with OCD. The onset was before the age of 15 years for 38% of the patients, and before 12 years of age for 21%. Diagnosis ...