Medical cannabis in Thailand: where it fits with other medicines
Cannabis in Thailand is a prescription-only controlled herb. A short overview for travellers, with links to our detailed regional guides.
Updated 13 November 2026
Cannabis law in Thailand changes often. This page reflects the rules as of 13 November 2026.
The basics
Since June 2025, cannabis flower in Thailand has been a controlled herb. It is legal for medical use only, sold against a Thai prescription called a PT33, to people aged 20 and over, in person at licensed shops and clinics.
Do not bring cannabis products from abroad
Foreign medical cannabis cards and prescriptions are not recognised. Do not bring cannabis, THC products or cannabis-based foods into Thailand, and never take cannabis out.
See also our cannabis medicine page for the quick answer.
Detailed guides
- Bangkok Ganja covers the law, PT33 clinics and dispensaries in Bangkok.
- Thailand Ganja covers every other region, from Chiang Mai to Phuket.
This page is general information, not medical or legal advice.