Medical Uses for Psilocybin The ingredient in "magic mushrooms" psilocybin could reverse the feeling of "existential distress" that patients often feel after being treated for cancer. Cancer could leave patients with this type of psychiatric disorder, feeling that life has no meaning. Typical treatments such as antidepressants may not be effective.
However, use of a single dose of synthetic psilocybin might reverse the distress felt by the patients. Some advanced cancer patients described the effect from the drug as if "the cloud of doom seemed to lift." Check disclaimer on profile and landing page.