Is Cannabis / THC legal in Thailand?
- Legal status
- Category 5 — cannabis reverted to medical-only (2025); importing cannabis products is prohibited (Narcotics Code B.E. 2564)
- Consequences if caught
- Cannabis is a Category 5 substance; it reverted to medical-only use in 2025, and importing cannabis products is prohibited.
- If prescribed or medical
- Importing cannabis products is prohibited regardless of a foreign prescription; domestic medical use is separately regulated within Thailand.
- Documentation
- None — importing cannabis products is prohibited.
Drug laws and enforcement change and vary within a country. This is not legal advice. Always confirm with Thailand’s embassy or official drug authority before traveling; penalties can be severe, including imprisonment.
Before you travel
Verify current rules with the destination country’s official drug authority and your own country’s embassy before traveling. Find the destination’s U.S. embassy & official country guidance →
Non-U.S. travelers: check your own government’s travel advisory and embassy.
If you’re detained or arrested abroad
Contact your own country’s embassy or consulate in the destination immediately — not the destination’s authorities. U.S. citizens: contact the nearest U.S. embassy/consulate and the U.S. State Department at +1-202-501-4444 (from abroad). If a U.S. citizen is arrested or detained abroad →