This review examines psycholytic therapy, a method using lower doses of LSD or psilocybin combined with ongoing psychotherapy to help people process psychological conflicts and trauma. Developed in Europe during the 1960s-1970s and used successfully at over 30 clinics, this approach was largely abandoned when psychedelics became illegal but is now being reconsidered. Historical research shows it was effective for anxiety, depression, and personality issues in treatment-resistant patients, with safety profiles comparable to conventional therapy.