Peter Gasser
Licensed ProviderMD, Psychiatrist, Psychotherapist
Solothurn, Switzerland
About
Conducted the first LSD clinical trial after decades of global prohibition (2007-2012), reopening the door to the entire psychedelic renaissance. Has legally administered LSD and MDMA in psychotherapy for over 30 years — possibly the longest continuous legal psychedelic therapy practice in the world. Developed a psychedelic-assisted group therapy model treating 50 patients (2014-2020), predominantly with complex PTSD. Only available to Swiss residents under compassionate use framework.
Clinical Orientation
Trained in psychodynamic methods and practices psycholytic (psychedelic) psychotherapy — defined as verbal, depth psychology psychotherapy involving experiences in altered states of consciousness induced by psychedelic drugs. His therapeutic framework integrates classical depth psychological understanding with the phenomenology of psychedelic experience.
Details
Certifications
- Swiss Medical Society for Psycholytic Therapy (President since 1997)
- Individual permissions from Swiss authorities for LSD and MDMA treatment
- Conducted first-ever post-prohibition LSD clinical trial (2007-2012)
Best for
- Complex PTSD (c-PTSD)
- Treatment-resistant anxiety
- End-of-life distress
- Dissociative and post-traumatic disorders
Publications
- Using a MDMA- and LSD-Group Therapy Model in Clinical Practice in Switzerland (Frontiers in Psychiatry, 2022)
- LSD-assisted psychotherapy for anxiety associated with life-threatening diseases (Journal of Nervous and Mental Disease, 2014)
- Psychedelic Group Therapy model publications