All states and countries
Legal status
Montana
No legal psilocybin accessFAQ →Bill tracker →Español →Providers and retreats in Montana →Reviewed October 2026
What psychedelic access is allowed in Montana?
No legal psilocybin access. Access depends on the substance and setting; this is not blanket permission to possess, buy or sell psychedelics.
Official source: Montana, official statutes and legislature →Psilocybin is a Schedule I controlled substance under Montana law. Possession, sale and facilitation are criminal offenses; clinical trials are the only lawful route.
Current law
Montana controlled substances law
- Possession or sharing psilocybin can be prosecuted
- Clinical trials are the only lawful route
- Ketamine can be prescribed off-label by licensed clinicians
Providers and their documented services
3 listedBig Sky Ketamine Care
Missoula, MT
Listed, not verified
Big Sky Ketamine Care
Missoula, MT
Documented services
IV ketamine therapy
Sources
- Organization's own informationSource checked 2026-11-08Big Sky Ketamine Care: Official services and clinic information
- Organization's own informationSource checked 2026-11-08Big Sky Ketamine Care: Official clinic address and contact
Montana Psychiatry & Brain Health Center
Bozeman, MT
Listed, not verified
Montana Psychiatry & Brain Health Center
Bozeman, MT
Documented services
Spravato (esketamine) treatment
Sources
- Organization's own informationSource checked 2026-11-10Montana Psychiatry & Brain Health Center: Official services and clinic information
Montana Psychiatry & Brain Health Center
Billings, MT
Listed, not verified
Montana Psychiatry & Brain Health Center
Billings, MT
Documented services
IV ketamine and Spravato (esketamine)
Sources
- Organization's own informationSource checked 2026-11-10Montana Psychiatry & Brain Health Center: Official services and clinic information