Thai FDA: Version 1.4 Page 5 of 7
Examples of narcotic drugs of Category 2 according to the Narcotics Act B.E. 2522
(1979), which is controlled under the Single convention on Narcotic Drugs, 1961:
Codeine, Dextropropoxyphene, Dihydrocodeine, Fentanyl, Hydrocodone,
Hydromorphone, Methadone, Morphine, Oxycodone, Pethidine.
B. Medications containing psychotropic substances of
categories 2, 3, and 4
According to the Psychotropic Substances Act B.E. 2518 (1975), travellers to
Thailand who acquire medications in Thailand are allowed to carry medications
containing psychotropic substances of Categories 2, 3, and 4 for personal treatment
in a quantity not exceeding 30 days of prescribed usage when accompanied
by a certificate/medical prescription from the prescribing physician.
The certificate/medical prescription from the prescribing physician must indicate:
the name and address of the patient
the identified medical condition
the name of the medications and the reason that those medications were
prescribed for the patient's treatment
the posology and total amount of medications prescribed
the name, address, and license number of the prescribing physician
The quantity of the medications transported out of Thailand must not exceed 30
days of prescribed usage.
Examples of psychotropic substances in Categories 2, 3, and 4 according to the
Psychotropic Substances Act B.E. 2518 (1975):
Category 2: Buprenorphine, Flunitrazepam, Methylphenidate, Midazolam,
Nitrazepam, Phentermine, Temazepam, Triazolam, Zolpidem.
Category 3: Pentazocine, Pentobarbital.
Category 4: Alprazolam, Bromazepam, Chlordiazepoxide, Clonazepam,
Clorazepate, Diazepam, Oxazepam, Lorazepam, Phenobarbital.
3. Prohibited Medications Containing Narcotic Drugs/
Psychotropic Substances in Thailand
With the exception of medications containing narcotic drugs of Category 2 under the
Narcotics Act B.E. 2522 (1979) or psychotropic substances of Categories 2, 3, and 4