It Works Too Well. Early research suggests that psilocybin therapy can cause remission of depressive symptoms in one to three sessions. Contrast that with SSRIs like Prozac, which patients take (and insurance companies pay for) for the rest of their lives. That means that there’s little recurring revenue, so COMPASS needs to convince the payers to ... See more

In another study, psilocybin significantly decreased depression and anxiety in patients with life-threatening cancer. After six months, 80% of the patients were still less clinically depressed than before the treatment. Some participants said they lost their fear of death.