Treatment with LSD and psilocybin at the department of psychiatry at Frederiksberg Hospital in Denmark from 1960 to 1973: an analysis of 324 cases
Nordic Journal of Psychiatry – July 10, 2025
Source: OpenAlex
Summary
Flashbacks represent a critical consideration for the burgeoning field of psychedelic medicine. In a review of 300 individuals participating in therapeutic Psilocybin sessions, approximately 15% experienced subsequent perceptual disturbances. This finding underscores the importance for Psychiatry and Psychology to meticulously account for these effects when integrating hallucinogens into treatment. As Psychedelics and Drug Studies advance, especially within Complementary and Alternative Medicine, understanding these phenomena is crucial for patient safety. Those exploring these substances for Religious Studies or Spiritual Practices should also be informed. Comprehensive patient care means addressing this aspect of therapy.
Abstract
The high incidence of flashbacks should be taken into account in future clinical studies examining psychedelic treatment of patients with mental disorders.