Is Fentanyl legal in Thailand?
- Legal status
- Controlled — Narcotics Category 2, medical use with an FDA permit (Narcotics Code B.E. 2564)
- Consequences if caught
- A Category 2 narcotic: outside authorised medical use, import or possession is a criminal narcotics offence, and unauthorised trafficking carries severe penalties.
- If prescribed or medical
- A traveller under treatment may carry up to a 90-day supply with a Thai FDA permit (Form IC-2) obtained at least 15 days before travel; declare at customs via the Red Channel.
- Documentation
- Prescription or medical certificate; for narcotic Category 2 and for psychotropic supplies of 31–90 days a Thai FDA permit (Form IC-2) applied for online at least 15 days before travel; carry original packaging and declare via the Customs Red Channel.
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 →