Table of controlled Narcotic Drugs under the Thai Narcotics Act B.E. 2522 (1979) (substances updated as of 04/09/2014) Category 1 Category 2 Category 4 Acetorphine para-Fluorofentanyl Acetyldihydrocodeine Dipipanone Norcodeine Acetic Anhydride Acetyl-alpha-Methylfentanyl PEPAP Acetylmethadol Drotebanol Norlevorphanol Acetyl Chloride Alpha-Methylfentanyl PMA Alfentanil Ecgonine Normethadone Alpha – Ergocryptine Alpha-Methylthiofentanyl PMMA Allylprodine Ethylmethylthiambutene Normorphine Alpha – Ergocryptinine Amphetamine (Paramethoxymethamphetamine) Alphacetylmethadol Ethylmorphine Norpipanone Alpha – Phenylacetoacetonitrile (APAAN) Beta-Hydroxy-3-methylfentanyl STP or DOM Alphameprodine Etonitazene Opium Anthranilic Acid Beta-Hydroxyfentanyl TFMPP Alphamethadol Etoxeridine Oripavine Beta – Ergocryptine BZP (Benzylpiperazine) Thiofentanyl Alphaprodine Fentanyl Oxycodone Beta – Ergocryptinine 2CB TMA Anileridine Furethidine Oxymorphone Chlorpseudoephedrine 2CD Benzethidine Hydrocodone Pethidine Elymoclavine 4-MTA Benzylmorphine Hydromorphinol Pethidine-Intermediate-A Ergocornine Desomorphine Betacetylmethadol Hydromorphone Pethidine-Intermediate-B Ergocristine Dexamphetamine Betameprodine Hydroxypethidine Pethidine-Intermediate-C Ergocristinine Dihydroetophine Betamethadol Isomethadone Phenadoxone Ergometrine DMA (Dimehoxyamphetamine) Betaprodine Levomethorphan Phenampromide Ergometrinine Dimethylamphetamine Bezitramide Levomoramide Phenazocine Ergosine DOB Clonitazene Levophenacylmorphan Phenomorphan Ergosinine DOET Coca bush Levorphanol Phenoperidine Ergosterol Etorphine Cocaine Medicinal Opium Pholcodine Ergotamine Heroin Codeine Metazocine Piminodine Ergotaminine Ketobemidone Codoxime Methadone Piritramide Ergothioneine Levamphetamine Concentrate of Poppy Straw Methadone lntermediate Proheptazine Ethylidine Diacetate Levomethamphetamine Dextromoramide Methyldesorphine Properidine Isosafrole LSD Dextropropoxyphene Methyldihydromorphine Propiram Lysergic Acid MDA Diampromide Metopon Racemethorphan Lysergamide MDMA Diethylthiambutene Moramide-Intermediate Racemoramide 3,4-Methylenedioxyphenyl-2- propanonone Mecloqualone Difenoxin Morphine Racemorphan N-acetylanthranilic Acid Mephedrone Dihydrocodeine Morphine Methobromide Remifentanil 1-phenyl-2-propanone meta-Chlorophenylpiperazine (mCPP) Dihydromorphine Morphine N-Oxide Sufentanil Phenylacetic Acid Methamphetamine Dimenoxadol Morpheridine Tapentadol Piperonal Methaqualone Dimepheptanol Myrophine Thebacon Safrole Methylenedioxypyrovalerone (MDPV) Dimethylthiambutene Nicocodine Thebaine 3-Methylfentanyl Dioxaphetylbutyrate Nicodicodine Tilidine 3-Methylthiofentanyl Diphenoxylate Nicomorphine Trimepridine Category 5 Methylone Noracymethadol MMDA Cannabis MPPP Mitragyna speciosa N - ethyl MDA or MDE Papaver somiferum N - hydroxy MDA or N-OH MDA Psilocybe cubensis .