Legal status in Thailand

Per-substance legal status for Thailand, from sourced statutes where available. Legal information, not legal advice; drug laws change, so confirm with the destination’s embassy or drug authority before you travel.

49 confirmed substances36 not individually verifiedLast updated July 14, 2026

Confirmed legal status

3-MMC

Legal status: 3-MMC (3-methylmethcathinone) is controlled: cathinone is a Category-1 psychotropic (no medical use) under the Narcotics Code, and 3-MMC is caught as a cathinone / by Thailand's 1971 Convention Schedule II obligation; the exact 3-MMC-specific listing is left to confirmation.
Consequences if caught: Category-1 psychotropic offences: trafficking carries heavy imprisonment and fines. Not a death-eligible drug in this psychotropic category, though Thailand retains capital narcotics statutes for other classes.
If prescribed / medical: No recognised medical use and no lawful prescription route.
Documentation: No lawful personal-import route for a Category-1 psychotropic.

en.fda.moph.go.th · Updated July 14, 2026

3-MMC in Thailand, full detail →

7-Hydroxymitragynine (7-OH)

Legal status: Neither 7-hydroxymitragynine nor kratom is separately scheduled in Thailand: 7-OH, a kratom alkaloid, is a constituent of the now-legal plant, decriminalised together with kratom (removed from Category 5 in 2021) and regulated under the Kratom Plant Act B.E. 2565 (2022), with certain sales and uses restricted.
Consequences if caught: No narcotics penalty attaches to the alkaloid; kratom is legal, though the Kratom Plant Act restricts sale to minors/pregnant women and certain preparations.
If prescribed / medical: No prescription requirement — kratom leaf is legal to consume; regulation is via the Kratom Plant Act, not the narcotics regime.
Documentation: Personal carry of the legal plant is permitted subject to the Kratom Plant Act; there is no narcotics import permit for it.

en.fda.moph.go.th · Updated July 13, 2026

7-Hydroxymitragynine (7-OH) in Thailand, full detail →

Adderall

Legal status: Adderall (mixed amphetamine salts) has no separate legal identity — it is regulated AS amphetamine: category 1 narcotic under the Narcotics Code B.E. 2564 (2021) — no accepted medical use; excluded from the traveller-permit pathway.
Consequences if caught: A serious criminal offence; narcotics offences carry heavy imprisonment. Amphetamine/Adderall cannot be brought in.
If prescribed / medical: No traveller-permit route for Category 1 — amphetamine/Adderall cannot lawfully be carried into Thailand.
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.

Narcotics Code B.E. 2564 (2021), Category 1 · permitfortraveler.fda.moph.go.th · Updated July 13, 2026

Adderall in Thailand, full detail →

Alcohol

Legal status: Legal — alcohol (ethanol) is a licensed, age-regulated beverage under the Alcoholic Beverage Control Act, not a controlled drug; minimum age 20 with restricted legal sale hours.
Consequences if caught: No penalty for adult consumption; off-hour or unlicensed sale, sale to minors and advertising breaches carry fines.
If prescribed / medical: n/a — a beverage, not a medicine.
Documentation: Sold at licensed outlets during permitted hours (roughly 11:00-14:00 and 17:00-24:00) on proof of age; no traveller permit.

who.int · Updated July 14, 2026

Alcohol in Thailand, full detail →

Amphetamine

Legal status: Category 1 narcotic under the Narcotics Code B.E. 2564 (2021) — no accepted medical use; excluded from the traveller-permit pathway.
Consequences if caught: A serious criminal offence; narcotics offences carry heavy imprisonment. Amphetamine/Adderall cannot be brought in.
If prescribed / medical: No traveller-permit route for Category 1 — amphetamine/Adderall cannot lawfully be carried into Thailand.
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.

Narcotics Code B.E. 2564 (2021), Category 1 · permitfortraveler.fda.moph.go.th · Updated July 13, 2026

Amphetamine in Thailand, full detail →

Barbiturates

Legal status: Barbiturates are psychotropic substances under the Narcotics Code B.E. 2564 (2021), classed by compound — the sedative-hypnotic barbiturates (secobarbital, amobarbital, pentobarbital) in Category 2 and phenobarbital in a lower category — transposing the 1971 Convention.
Consequences if caught: Carrying over the personal limit is an offence.
If prescribed / medical: Phenobarbital is prescribed as an antiepileptic (a WHO Essential Medicine); the Category 2 sedative-hypnotic barbiturates need an import permit and are tightly controlled.
Documentation: Lower-category psychotropics: up to a 30-day supply carried with a prescription or medical certificate; Category 2 barbiturates need an FDA import permit.

en.fda.moph.go.th · Updated July 14, 2026

Barbiturates in Thailand, full detail →

Benzodiazepines

Legal status: Psychotropic (Categories 2–4) — allowed with a prescription
Consequences if caught: Non-prescribed possession is a psychotropic offence.
If prescribed / medical: Allowed with a prescription for up to a 30-day supply; for a 31–90-day supply a Thai FDA permit (Form IC-2) is required, applied for at least 15 days before travel.
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.

permitfortraveler.fda.moph.go.th · Updated June 25, 2026

Benzodiazepines in Thailand, full detail →

Buprenorphine

Legal status: Buprenorphine is a controlled opioid under Thailand's Narcotics Code B.E. 2564 (2021) — a lighter tier than methadone — but it is NOT legally available (registered or dispensed) domestically; methadone is the sole agonist OST medicine in Thai clinics.
Consequences if caught: Unauthorised possession or supply of a controlled narcotic is an offence.
If prescribed / medical: Not dispensed domestically; opioid-substitution treatment in Thailand is methadone-based through public health centres.
Documentation: A traveller may carry up to 30 daily doses of prescribed buprenorphine with a doctor's letter; confirm with the Thai FDA.

en.fda.moph.go.th · Updated July 13, 2026

Buprenorphine in Thailand, full detail →

Cannabis / THC

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 / 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.

permitfortraveler.fda.moph.go.th · Updated June 25, 2026

Cannabis / THC in Thailand, full detail →

Cathinone

Legal status: Controlled — cathinone (khat's natural principal alkaloid) is a 1971 Convention SCHEDULE I psychotropic and is a Category 1 psychotropic substance under the Narcotics Code (consolidated 2021). Mechanism: 1971 Sch-I transposition, named. As the parent compound it is DISTINCT from the khat PLANT (Catha edulis leaf, which the Thai FDA states is not itself scheduled) and from the synthetic cathinones (mephedrone etc., separately scheduled) that derive from it; cathinone is the named Category-1 alkaloid, cathine the milder Category-2 / Schedule-III metabolite. Thailand retains the death penalty, but cathinone is not a capital-threshold drug and carries no realistic capital exposure.
Consequences if caught: Category 1 psychotropic: possession and supply of the isolated alkaloid are serious narcotics offences, but well below any capital tier.
If prescribed / medical: 1971 Schedule I / Category-1 substance with no accepted medical use and no lawful prescription route for the isolated alkaloid.
Documentation: No licit personal-import route for a Category-1 psychotropic.

narcotic.fda.moph.go.th · Updated July 14, 2026

Cathinone in Thailand, full detail →

CBD

Legal status: CBD (cannabidiol) is legal as a non-narcotic only if the extract contains 0.2% THC or less by weight and is from domestically grown cannabis/hemp; extracts over 0.2% THC remain a Category 5 narcotic and the import of extracts is prohibited.
Consequences if caught: A CBD product testing over 0.2% THC, or any imported CBD extract/oil, is a Category 5 narcotic subject to seizure, fines and imprisonment, while compliant domestic sub-0.2% products are freely possessed.
If prescribed / medical: Cannabis flower was restricted to prescription-only (PT-33 form, maximum 30 days) by the June 2025 MoPH Controlled Herb notification, which did not re-criminalise compliant sub-0.2%-THC CBD extract.
Documentation: Domestic sub-0.2%-THC CBD is freely held; imported CBD extract is prohibited and paperwork does not legalise it, and cannabis flower needs a PT-33 prescription.

ratchakitcha.soc.go.th · Updated July 14, 2026

CBD in Thailand, full detail →

Clonazepam

Legal status: Clonazepam is a Category 4 psychotropic substance under the Narcotics Code B.E. 2564 (2021).
Consequences if caught: Carrying over the personal limit is an offence.
If prescribed / medical: Prescribed as a Category 4 psychotropic medicine.
Documentation: Category 4: up to a 30-day supply carried with a prescription or medical certificate.

en.fda.moph.go.th · Updated July 13, 2026

Clonazepam in Thailand, full detail →

Cocaine

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 / 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.

permitfortraveler.fda.moph.go.th · Updated June 25, 2026

Cocaine in Thailand, full detail →

Codeine

Legal status: Codeine is a Category 2 narcotic under the Narcotics Code B.E. 2564 (2021), prescription-controlled; travellers may carry up to a 90-day supply only with a Thai FDA permit (Form IC-2) obtained before arrival.
Consequences if caught: Category 2 narcotic offences carry heavy penalties; unauthorised possession or import is prosecutable.
If prescribed / medical: Prescribed and dispensed as a Category 2 narcotic medicine.
Documentation: TRAVELLER TRAP: bringing codeine without the Thai FDA Form IC-2 import permit is unlawful - apply ahead; maximum 90-day supply.

permitfortraveler.fda.moph.go.th · Updated July 13, 2026

Codeine in Thailand, full detail →

Crack Cocaine

Legal status: Crack is the freebase (base) form of cocaine and has no separate legal identity in Thailand: it is controlled AS cocaine, a Narcotics Category 2 substance under the Narcotics Code B.E. 2564 (2021), whose entry covers cocaine, its salts and preparations and so reaches the base/freebase form. Crack is controlled identically to cocaine, with medical use only under FDA permit.
Consequences if caught: Possession, sale and trafficking of crack (as cocaine) are criminal under the Narcotics Code, carrying imprisonment and fines graded by quantity and intent.
If prescribed / medical: Cocaine (Category 2) may be used medically only under a Thai FDA permit; the crack/freebase base has no medicinal preparation and cannot be prescribed.
Documentation: No prescription documentation exists for crack/freebase cocaine.

permitfortraveler.fda.moph.go.th · Updated July 14, 2026

Crack Cocaine in Thailand, full detail →

Delta-8-THC

Legal status: Controlled by THC content — under the Narcotics Code (B.E. 2564) and the 2022 cannabis reform, any cannabis/hemp EXTRACT containing more than 0.2% tetrahydrocannabinol by weight remains a Category 5 narcotic; delta-8-THC (Δ8-THC) is caught as a tetrahydrocannabinol above that threshold, controlled by its THC content rather than named. Distinct from cannabis buds/plant, largely decriminalised post-2022 subject to tightening rules. No death penalty.
Consequences if caught: A delta-8 extract above 0.2% THC is a Category 5 narcotic — production/import/sale/possession require a licence; unlicensed handling is criminal; importing cannabis products is prohibited.
If prescribed / medical: No recognised medical use for delta-8-THC specifically; only licensed high-THC extracts for defined medical purposes are permitted.
Documentation: No lawful personal import of a >0.2%-THC extract.

fda.moph.go.th · Updated July 14, 2026

Delta-8-THC in Thailand, full detail →

Diazepam

Legal status: Diazepam is a Category 4 psychotropic substance under the Narcotics Code B.E. 2564 (2021).
Consequences if caught: Carrying over the personal limit is an offence.
If prescribed / medical: Prescribed as a Category 4 psychotropic medicine.
Documentation: Category 4: up to a 30-day supply carried with a prescription or medical certificate.

en.fda.moph.go.th · Updated July 13, 2026

Diazepam in Thailand, full detail →

Ephedrine

Legal status: Controlled under the Narcotics Code (Narcotics Act B.E. 2564): ephedrine is tightly controlled (psychotropic/precursor list), with import/manufacture/dispensing restricted to licensed/hospital channels — the driver is meth-precursor diversion.
Consequences if caught: Unauthorised production/import/export/possession/sale carries imprisonment + fines; large-quantity precursor diversion for meth manufacture is prosecuted severely.
If prescribed / medical: Also a pharmacy/prescription decongestant-bronchodilator medicine subject to sales limits; carry documentation for a personal supply.
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.

en.fda.moph.go.th · Updated July 13, 2026

Ephedrine in Thailand, full detail →

Etizolam

Legal status: Etizolam is a Category 4 psychotropic under the Narcotics Code; it is not FDA-registered as a medicine in Thailand.
Consequences if caught: Unauthorised possession or sale is penalised; travellers are limited to a ~30-day supply where lawful.
If prescribed / medical: Not FDA-registered — there is no licensed etizolam product in Thailand.
Documentation: No registered product exists; carry documentation only for lawfully prescribed medicines and confirm rules with the Thai FDA.

en.fda.moph.go.th · Updated July 13, 2026

Etizolam in Thailand, full detail →

Fentanyl

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 / 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.

permitfortraveler.fda.moph.go.th · Updated June 25, 2026

Fentanyl in Thailand, full detail →

GHB

Legal status: Prohibited — no accepted medical use (Thai FDA)
Consequences if caught: GHB is prohibited and has no accepted medical use; import or possession is an offence.
If prescribed / medical: No medical-use import pathway.
Documentation: None — no accepted medical use.

permitfortraveler.fda.moph.go.th · Updated June 25, 2026

GHB in Thailand, full detail →

Heroin

Legal status: Prohibited — Narcotics Category 1, no accepted medical use (Narcotics Code B.E. 2564 / Narcotics Act B.E. 2522)
Consequences if caught: A Category 1 narcotic with no accepted medical use — it cannot be imported under any circumstances. Trafficking penalties are severe, up to life imprisonment plus large fines; possession and use are criminal offences.
If prescribed / medical: No import is permitted in any form, even with a foreign prescription — Category 1 has no medical-use pathway.
Documentation: None — Category 1 substances cannot be imported.

permitfortraveler.fda.moph.go.th · Updated June 25, 2026

Heroin in Thailand, full detail →

Hydrocodone

Legal status: Hydrocodone is a Category 2 narcotic under the Narcotics Code; it is not marketed in Thailand but sits in the same Category 2 strong-opioid tier as morphine and oxycodone — left to confirmation.
Consequences if caught: Unlawful possession or import carries imprisonment plus a fine.
If prescribed / medical: No marketed Thai hydrocodone product; a Category 2 narcotic is dispensed only under narcotic control.
Documentation: Traveller trap: a Thai FDA import permit (Form IC-2) is required before arrival (apply at least 15 days ahead), max 90-day supply, even with a foreign prescription.

en.fda.moph.go.th · Updated July 13, 2026

Hydrocodone in Thailand, full detail →

Ketamine

Legal status: Schedule II psychotropic (Psychotropic Substances Act) — not under the Narcotics Code
Consequences if caught: Ketamine is a Schedule II psychotropic; unauthorised possession is criminal and can include imprisonment.
If prescribed / medical: Permitted only with proper authorisation/prescription; verify permit requirements with the Thai FDA.
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.

permitfortraveler.fda.moph.go.th · Updated June 25, 2026

Ketamine in Thailand, full detail →

Khat

Legal status: Controlled — ALKALOIDS ONLY NAMED. Cathinone is a Category 1 psychotropic substance and cathine a Category 2 under the Narcotics Code (consolidated 2021); the Thai FDA states the Catha edulis plant itself is not scheduled, only the extracted alkaloids. Mechanism: NAMED (alkaloids); plant grey. Thailand retains the death penalty but khat leaf sits far below any capital threshold — no realistic capital exposure.
Consequences if caught: Importing khat is treated as a narcotics offence because the leaf contains Category-1 cathinone (customs has seized imported leaf); serious but well below any capital tier.
If prescribed / medical: Khat is traditional plant material with no recognised medical use and no lawful prescription route.
Documentation: No lawful personal-import route; fresh leaf contains a Category-1 psychotropic and is seized on import.

narcotic.fda.moph.go.th · Updated July 14, 2026

Khat in Thailand, full detail →

Kratom

Legal status: Kratom (Mitragyna speciosa) is NOT a controlled narcotic in Thailand — it was removed from Narcotics Category 5 by the Narcotics Act (No. 8) B.E. 2564, effective 24 August 2021, which also expunged prior kratom offences; it is now a lawful, regulated plant under the Kratom Plant Act B.E. 2565 (2022), not prohibited.
Consequences if caught: Personal use, possession, cultivation and trade of kratom leaf are lawful; regulatory offences under the Kratom Plant Act attach to selling to minors under 18 and to pregnant women, and to certain mixed/adulterated preparations, rather than to the plant itself.
If prescribed / medical: No prescription is required — kratom is a legal plant regulated as a commodity, not scheduled as a medicine; commercial processing and export need a licence under the Kratom Plant Act.
Documentation: Travellers may carry kratom leaf for personal use; commercial import/export requires a Kratom Plant Act licence. Mitragynine and 7-hydroxymitragynine are constituents of the now-legal plant and are not separately scheduled.

en.fda.moph.go.th · Updated July 13, 2026

Kratom in Thailand, full detail →

Lorazepam

Legal status: Lorazepam is a Category 4 psychotropic substance under the Narcotics Code B.E. 2564 (2021).
Consequences if caught: Carrying over the personal limit is an offence.
If prescribed / medical: Prescribed as a Category 4 psychotropic medicine.
Documentation: Category 4: up to a 30-day supply carried with a prescription or medical certificate.

en.fda.moph.go.th · Updated July 13, 2026

Lorazepam in Thailand, full detail →

LSD

Legal status: Prohibited — Narcotics Category 1, no accepted medical use (Narcotics Code B.E. 2564 / Narcotics Act B.E. 2522)
Consequences if caught: A Category 1 narcotic with no accepted medical use — it cannot be imported under any circumstances. Trafficking penalties are severe, up to life imprisonment plus large fines; possession and use are criminal offences.
If prescribed / medical: No import is permitted in any form, even with a foreign prescription — Category 1 has no medical-use pathway.
Documentation: None — Category 1 substances cannot be imported.

permitfortraveler.fda.moph.go.th · Updated June 25, 2026

LSD in Thailand, full detail →

MDA

Legal status: Controlled — MDA is a Category 1 narcotic under the Narcotics Code B.E. 2564 (2021), the heroin/methamphetamine/MDMA class. NAMED mechanism. Thailand retains no death penalty for this.
Consequences if caught: Category 1: trafficking up to life imprisonment and heavy fines.
If prescribed / medical: Category 1 narcotic — no recognised medical use, no lawful prescription route.
Documentation: No lawful personal import of a Category 1 narcotic.

en.fda.moph.go.th · Updated July 14, 2026

MDA in Thailand, full detail →

MDMA

Legal status: Prohibited — Narcotics Category 1, no accepted medical use (Narcotics Code B.E. 2564 / Narcotics Act B.E. 2522)
Consequences if caught: A Category 1 narcotic with no accepted medical use — it cannot be imported under any circumstances. Trafficking penalties are severe, up to life imprisonment plus large fines; possession and use are criminal offences.
If prescribed / medical: No import is permitted in any form, even with a foreign prescription — Category 1 has no medical-use pathway.
Documentation: None — Category 1 substances cannot be imported.

permitfortraveler.fda.moph.go.th · Updated June 25, 2026

MDMA in Thailand, full detail →

MDPV

Legal status: Controlled. Thailand scheduled synthetic cathinones and MDPV sits within the Narcotics Code / psychotropic-substances category as a 1971 Convention Schedule II substance; the precise schedule category is left to confirmation. No death penalty applies to this substance class in practice.
Consequences if caught: Illegal; possession and trafficking carry imprisonment under the Narcotics Code. Not death-eligible for this class in practice.
If prescribed / medical: MDPV has no recognised medical use and no lawful prescription route in Thailand.
Documentation: No lawful personal-import route for a controlled substance; do not carry.

en.fda.moph.go.th · Updated July 14, 2026

MDPV in Thailand, full detail →

Mephedrone (4-MMC)

Legal status: Controlled — NAMED. Mephedrone is scheduled as a Category 1 narcotic under the Narcotics Code (cathinones controlled) and treated as an illicit narcotic.
Consequences if caught: Category 1 narcotic: possession and supply offences. Thailand retains capital punishment on paper but it is not applied to this substance — no death-penalty exposure for mephedrone.
If prescribed / medical: Category 1 narcotic with no recognised medical use and no lawful prescription route.
Documentation: No licit personal-import route for a Category 1 narcotic.

unodc.org · Updated July 14, 2026

Mephedrone (4-MMC) in Thailand, full detail →

Methadone

Legal status: Methadone is a Category 2 narcotic under the Narcotics Code — and is the OST medicine available in Thailand (approved for opioid-substitution treatment since 2000, within universal health coverage).
Consequences if caught: Unlawful possession or import of a Category 2 narcotic carries imprisonment and heavy fines.
If prescribed / medical: Prescribed for methadone-based OST via public health centres/clinics (buprenorphine is not domestically dispensed, so methadone is the available agonist).
Documentation: Carrying methadone requires prior Thai FDA import approval (Form IC-2, apply ≥15 days ahead); a foreign prescription alone will not clear it into Thailand.

en.fda.moph.go.th · Updated July 13, 2026

Methadone in Thailand, full detail →

Methamphetamine

Legal status: Prohibited — Narcotics Category 1, no accepted medical use (Narcotics Code B.E. 2564 / Narcotics Act B.E. 2522)
Consequences if caught: A Category 1 narcotic with no accepted medical use — it cannot be imported under any circumstances. Trafficking penalties are severe, up to life imprisonment plus large fines; possession and use are criminal offences.
If prescribed / medical: No import is permitted in any form, even with a foreign prescription — Category 1 has no medical-use pathway.
Documentation: None — Category 1 substances cannot be imported.

permitfortraveler.fda.moph.go.th · Updated June 25, 2026

Methamphetamine in Thailand, full detail →

Methaqualone (Quaaludes)

Legal status: Methaqualone (เมทาควอโลน) is a Category 1 narcotic under Thailand's Narcotics Code (Narcotic Drugs Act) — a prohibited substance with no permitted medical use; Thailand places it in its strictest narcotics category (unlike ketamine's Schedule II psychotropic status), reflecting its 1971 Convention Schedule II control.
Consequences if caught: Possession, sale, import or production carry severe penalties — long imprisonment and heavy fines, with the harshest terms (up to life) for large-scale trafficking.
If prescribed / medical: No recognised medical use / withdrawn — as a Category 1 narcotic it has no accepted therapeutic use.
Documentation: No medical or traveller route; there is no lawful prescription or import pathway.

image.mfa.go.th · Updated July 14, 2026

Methaqualone (Quaaludes) in Thailand, full detail →

Methylphenidate

Legal status: Category 2 psychotropic substance under the Psychotropic Substances Act (a DIFFERENT statute from the Category-1 narcotics that bar amphetamine).
Consequences if caught: A traveller under treatment may carry up to a 30-day supply with a prescription/medical certificate and a Thai FDA traveller permit (Form IC-2) ≥15 days ahead.
If prescribed / medical: Thai FDA traveller permit (Form IC-2) ≥15 days ahead, plus the prescription.

Psychotropic Substances Act B.E. 2518 (Category 2) · permitfortraveler.fda.moph.go.th · Updated July 13, 2026

Methylphenidate in Thailand, full detail →

Mitragynine

Legal status: Neither mitragynine nor kratom is separately scheduled in Thailand: kratom was removed from Narcotics Category 5 by the Narcotics Act (No. 8) B.E. 2564 (2021), and mitragynine, the principal alkaloid of kratom, is a constituent of the now-legal plant — decriminalised together and regulated (not prohibited) under the Kratom Plant Act B.E. 2565 (2022), with sale to minors/pregnant women restricted.
Consequences if caught: No narcotics penalty attaches to the alkaloid; kratom is legal, though the Kratom Plant Act restricts sale to minors/pregnant women and certain preparations.
If prescribed / medical: No prescription requirement — kratom leaf is legal to consume; regulation is via the Kratom Plant Act, not the narcotics regime.
Documentation: Personal carry of the legal plant is permitted subject to the Kratom Plant Act; there is no narcotics import permit for it.

en.fda.moph.go.th · Updated July 13, 2026

Mitragynine in Thailand, full detail →

Modafinil

Legal status: 'General drug' (prescription medicine) — NOT a narcotic (Narcotics Code) nor a psychotropic (Psychotropic Substances Act); not scheduled.
Consequences if caught: Prescription-medicine offence only.
If prescribed / medical: Travellers may carry up to a 30-day supply with a doctor's letter/prescription; no Thai FDA import permit required.
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.

Not scheduled (general prescription drug) · permitfortraveler.fda.moph.go.th · Updated July 13, 2026

Modafinil in Thailand, full detail →

Morphine

Legal status: Morphine is a Category 2 narcotic under the Narcotics Code B.E. 2564 (2021), dispensed on a narcotics prescription.
Consequences if caught: Unlawful possession or import draws imprisonment plus a fine.
If prescribed / medical: Prescribed as a Category 2 narcotic for severe and cancer pain.
Documentation: TRAVELLER TRAP — an FDA import permit (Form IC-2) obtained at least 15 days ahead is required, capped at a 90-day supply, even with a foreign prescription.

en.fda.moph.go.th · Updated July 13, 2026

Morphine in Thailand, full detail →

Nicotine

Legal status: Nicotine is legal in Thailand in combustible tobacco and in nicotine-replacement therapy, but the nicotine DELIVERY product is banned: the import, export, sale and possession of e-cigarettes, vaporisers and e-liquids has been prohibited since 2014 (import barred under the Customs Act and a Commerce Ministry notification; sale/possession under Consumer Protection Board order). A 2025 nationwide crackdown drove documented tourist arrests, fines and seizures — a well-known traveler trap.
Consequences if caught: Possession or use exposes travelers to on-the-spot fines commonly 5,000–30,000 baht, device confiscation, detention and, for importation, fines up to five times the goods' value and imprisonment of up to ten years under the Customs Act. Bag checks at Suvarnabhumi, Don Mueang and Phuket target vaping hardware.
If prescribed / medical: Nicotine-replacement therapy (patches/gum) is lawful; there is no medical or prescription pathway to legally possess a vape.
Documentation: No lawful import permit for personal vapes; the U.S. Embassy and Royal Thai missions advise bringing no e-cigarette or associated liquid.

th.usembassy.gov · Updated July 14, 2026

Nicotine in Thailand, full detail →

Nitrous Oxide

Legal status: Nitrous oxide is not scheduled as a narcotic under Thailand's Narcotics Code; as an anaesthetic medical gas it is a 'modern drug' whose manufacture, sale and import require a licence under the Drug Act B.E. 2510 (1967), so unlicensed sale for recreational inhalation is an offence while licensed medical use is lawful.
Consequences if caught: Unlicensed sale or supply is a Drug Act offence (imprisonment and fine); because nitrous oxide is not a scheduled narcotic it is NOT death-eligible.
If prescribed / medical: Nitrous oxide is a lawful medical/anaesthetic gas and food additive (E942); licensed medical and food-industry supply is permitted.
Documentation: Medical nitrous oxide is licensed; open recreational sale in tourist areas is unlicensed and unlawful under the Drug Act, though enforcement is uneven.

en.fda.moph.go.th · Updated July 14, 2026

Nitrous Oxide in Thailand, full detail →

Oxycodone

Legal status: Oxycodone is a Category 2 narcotic under the Narcotics Code B.E. 2564 (2021) — a controlled strong-opioid analgesic.
Consequences if caught: Unauthorised possession or import of a Category 2 narcotic carries imprisonment and heavy fines.
If prescribed / medical: Prescribed as a Category 2 narcotic analgesic.
Documentation: TRAVELLER TRAP: a Thai FDA import permit (Form IC-2) is required in advance (apply at least 15 days ahead), max 90-day supply — a foreign prescription alone will not clear it.

en.fda.moph.go.th · Updated July 13, 2026

Oxycodone in Thailand, full detail →

Pink Cocaine / Tusi

Legal status: Pink cocaine (tusi) is not scheduled as such; it is a variable mixture (typically ketamine + MDMA) prosecuted through its constituents — Thailand prohibits MDMA as a Narcotics Category 1 substance with no accepted medical use while ketamine is a Schedule II psychotropic, and the Narcotics Code reaches any preparation containing a controlled substance. Because the blend varies batch to batch, exposure follows the most-severely-controlled component, so an MDMA-containing tusi sample is a Category 1 offence.
Consequences if caught: An MDMA-positive mixture is a Category 1 narcotics offence (serious imprisonment and fines); a ketamine-only mixture is a psychotropic offence carrying lesser penalties.
If prescribed / medical: No lawful supply of the mixture; ketamine is a Schedule II psychotropic medicine, whereas MDMA is a Category 1 narcotic with no accepted medical use.
Documentation: Sold as a party powder of unknown makeup; because composition varies batch to batch, buyers cannot know whether Category 1 MDMA is present, so legal exposure is unknowable at purchase.

permitfortraveler.fda.moph.go.th · Updated July 14, 2026

Pink Cocaine / Tusi in Thailand, full detail →

Pregabalin

Legal status: Pregabalin is a prescription-only 'dangerous drug' (ยาอันตราย) under Thailand's Drug Act and is NOT scheduled as a narcotic or psychotropic — so, although Thailand retains capital narcotics penalties, pregabalin (like gabapentin) sits outside those tiers as a prescription medicine.
Consequences if caught: Dispensing or possessing pregabalin outside the prescription framework is a Drug Act offence; it is not death-eligible.
If prescribed / medical: Dispensed as a prescription-only dangerous drug through pharmacies.
Documentation: Carry a personal supply with a prescription or doctor's letter and declare it; confirm whether a Thai FDA import formality applies to larger amounts.

en.fda.moph.go.th · Updated July 14, 2026

Pregabalin in Thailand, full detail →

Psilocybin

Legal status: Category 5 — psilocybin mushrooms (Narcotics Code B.E. 2564)
Consequences if caught: Psilocybin mushrooms are listed as a Category 5 substance; import or possession is a narcotics offence.
If prescribed / medical: No recognised medical-import pathway; verify with the Thai FDA.
Documentation: None — no recognised medical-import pathway.

permitfortraveler.fda.moph.go.th · Updated June 25, 2026

Psilocybin in Thailand, full detail →

Synthetic Cannabinoids (K2 / Spice)

Legal status: Controlled. Synthetic cannabinoids are scheduled under Thailand's Narcotics Code (Category 1/psychotropic categories), with named synthetic cannabinoids listed by ministerial notification tracking the 1971 Convention Schedule II additions; distinct from cannabis, which Thailand reverted to medical-only Category 5 in 2025. Death penalty does not apply to this synthetic-cannabinoid class in practice.
Consequences if caught: Illegal; possession and trafficking carry imprisonment under the Narcotics Code. Not death-eligible for this class in practice.
If prescribed / medical: These synthetic cannabinoids have no recognised medical use and no lawful prescription route in Thailand.
Documentation: No lawful personal-import route for controlled synthetic cannabinoids; do not carry.

en.fda.moph.go.th · Updated July 14, 2026

Synthetic Cannabinoids (K2 / Spice) in Thailand, full detail →

Tramadol

Legal status: Tramadol is a controlled medicine in Thailand — oral tramadol was reclassified as a 'Specially Controlled Drug' (announced 14 July 2025, in force within 180 days) with quantity caps, having previously been a pharmacist-restricted dangerous drug; Thailand retains the death penalty for the most serious narcotics offences, but no tramadol-specific capital tier is established.
Consequences if caught: Dispensing or possessing tramadol outside the specially-controlled limits is an offence; personal possession and use are not death-eligible.
If prescribed / medical: Dispensed as a Specially Controlled Drug under strict quantity limits.
Documentation: Carry only a personal supply with a prescription or doctor's letter and declare it; confirm whether an FDA import permit is required.

en.fda.moph.go.th · Updated July 13, 2026

Tramadol in Thailand, full detail →

Xanax (Alprazolam)

Legal status: Alprazolam was up-scheduled from Category 4 to Category 2 psychotropic (around 2013) under the Narcotics Code — it is treated more strictly than other benzodiazepines and needs an FDA import permit.
Consequences if caught: Category 2 alprazolam without authorisation carries imprisonment and heavy fines; undocumented Xanax is high-risk.
If prescribed / medical: Prescribed as a Category 2 psychotropic — stricter FDA import-permit control than Category 4 benzodiazepines.
Documentation: Category 2 alprazolam needs an FDA import permit — a foreign prescription alone will not clear it into Thailand.

narcotic.fda.moph.go.th · Updated July 13, 2026

Xanax (Alprazolam) in Thailand, full detail →

Zolpidem

Legal status: Zolpidem is a Category 2 psychotropic substance under Thai psychotropic-substances law (a recognised medicine with higher abuse potential), transposing its 1971 Convention Schedule IV status; it is prescription-only.
Consequences if caught: Unauthorised possession or supply of this Category 2 psychotropic is an offence under Thailand's psychotropic-substances and narcotics laws, with significant penalties.
If prescribed / medical: Zolpidem is prescribed short-term for insomnia as a Category 2 controlled psychotropic hypnotic.
Documentation: A traveller must carry a doctor's certificate/prescription and observe the 30-day personal-supply rule; a narcotics/psychotropic import permit may be required for larger quantities.

en.fda.moph.go.th · Updated July 14, 2026

Zolpidem in Thailand, full detail →

Not individually verified

For these 36 substances the governing national drug law is cited, but we have not verified that the substance specifically is scheduled under it. Treat them as unanswered, not as legal. Confirm with Thailand’s drug authority or your embassy.

1P-LSD

Legal status: Not confirmed — verify with the Thai FDA / your embassy
Consequences if caught: This specific substance was not named by a reachable Thai source. Thailand controls narcotics (Narcotics Code B.E. 2564) and psychotropics (Psychotropic Substances Act), with severe penalties for unauthorised import or possession.
If prescribed / medical: Not confirmed — verify with the Thai FDA / your embassy before travel.
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.

permitfortraveler.fda.moph.go.th · Updated July 14, 2026

2-FDCK

Legal status: Not confirmed — verify with the Thai FDA / your embassy
Consequences if caught: This specific substance was not named by a reachable Thai source. Thailand controls narcotics (Narcotics Code B.E. 2564) and psychotropics (Psychotropic Substances Act), with severe penalties for unauthorised import or possession.
If prescribed / medical: Not confirmed — verify with the Thai FDA / your embassy before travel.
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.

permitfortraveler.fda.moph.go.th · Updated July 14, 2026

25I-NBOMe

Legal status: Not confirmed — verify with the Thai FDA / your embassy
Consequences if caught: This specific substance was not named by a reachable Thai source. Thailand controls narcotics (Narcotics Code B.E. 2564) and psychotropics (Psychotropic Substances Act), with severe penalties for unauthorised import or possession.
If prescribed / medical: Not confirmed — verify with the Thai FDA / your embassy before travel.
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.

permitfortraveler.fda.moph.go.th · Updated June 25, 2026

2C-B

Legal status: Not confirmed — verify with the Thai FDA / your embassy
Consequences if caught: This specific substance was not named by a reachable Thai source. Thailand controls narcotics (Narcotics Code B.E. 2564) and psychotropics (Psychotropic Substances Act), with severe penalties for unauthorised import or possession.
If prescribed / medical: Not confirmed — verify with the Thai FDA / your embassy before travel.
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.

permitfortraveler.fda.moph.go.th · Updated June 25, 2026

2C-E

Legal status: Not confirmed — verify with the Thai FDA / your embassy
Consequences if caught: This specific substance was not named by a reachable Thai source. Thailand controls narcotics (Narcotics Code B.E. 2564) and psychotropics (Psychotropic Substances Act), with severe penalties for unauthorised import or possession.
If prescribed / medical: Not confirmed — verify with the Thai FDA / your embassy before travel.
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.

permitfortraveler.fda.moph.go.th · Updated July 14, 2026

2C-I

Legal status: Not confirmed — verify with the Thai FDA / your embassy
Consequences if caught: This specific substance was not named by a reachable Thai source. Thailand controls narcotics (Narcotics Code B.E. 2564) and psychotropics (Psychotropic Substances Act), with severe penalties for unauthorised import or possession.
If prescribed / medical: Not confirmed — verify with the Thai FDA / your embassy before travel.
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.

permitfortraveler.fda.moph.go.th · Updated June 25, 2026

2C-T-7

Legal status: Not confirmed — verify with the Thai FDA / your embassy
Consequences if caught: This specific substance was not named by a reachable Thai source. Thailand controls narcotics (Narcotics Code B.E. 2564) and psychotropics (Psychotropic Substances Act), with severe penalties for unauthorised import or possession.
If prescribed / medical: Not confirmed — verify with the Thai FDA / your embassy before travel.
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.

permitfortraveler.fda.moph.go.th · Updated June 25, 2026

4-AcO-DMT

Legal status: Not confirmed — verify with the Thai FDA / your embassy
Consequences if caught: This specific substance was not named by a reachable Thai source. Thailand controls narcotics (Narcotics Code B.E. 2564) and psychotropics (Psychotropic Substances Act), with severe penalties for unauthorised import or possession.
If prescribed / medical: Not confirmed — verify with the Thai FDA / your embassy before travel.
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.

permitfortraveler.fda.moph.go.th · Updated July 14, 2026

4-HO-MET

Legal status: Not confirmed — verify with the Thai FDA / your embassy
Consequences if caught: This specific substance was not named by a reachable Thai source. Thailand controls narcotics (Narcotics Code B.E. 2564) and psychotropics (Psychotropic Substances Act), with severe penalties for unauthorised import or possession.
If prescribed / medical: Not confirmed — verify with the Thai FDA / your embassy before travel.
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.

permitfortraveler.fda.moph.go.th · Updated July 14, 2026

5-MeO-DMT (Bufo / Toad)

Legal status: Not confirmed — verify with the Thai FDA / your embassy
Consequences if caught: This specific substance was not named by a reachable Thai source. Thailand controls narcotics (Narcotics Code B.E. 2564) and psychotropics (Psychotropic Substances Act), with severe penalties for unauthorised import or possession.
If prescribed / medical: Not confirmed — verify with the Thai FDA / your embassy before travel.
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.

permitfortraveler.fda.moph.go.th · Updated July 14, 2026

6-APB

Legal status: Not confirmed — verify with the Thai FDA / your embassy
Consequences if caught: This specific substance was not named by a reachable Thai source. Thailand controls narcotics (Narcotics Code B.E. 2564) and psychotropics (Psychotropic Substances Act), with severe penalties for unauthorised import or possession.
If prescribed / medical: Not confirmed — verify with the Thai FDA / your embassy before travel.
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.

permitfortraveler.fda.moph.go.th · Updated July 14, 2026

Amanita muscaria

Legal status: Not confirmed — verify with the Thai FDA / your embassy
Consequences if caught: This specific substance was not named by a reachable Thai source. Thailand controls narcotics (Narcotics Code B.E. 2564) and psychotropics (Psychotropic Substances Act), with severe penalties for unauthorised import or possession.
If prescribed / medical: Not confirmed — verify with the Thai FDA / your embassy before travel.
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.

permitfortraveler.fda.moph.go.th · Updated July 14, 2026

Amyl Nitrite

Legal status: Not confirmed — verify with the Thai FDA / your embassy
Consequences if caught: This specific substance was not named by a reachable Thai source. Thailand controls narcotics (Narcotics Code B.E. 2564) and psychotropics (Psychotropic Substances Act), with severe penalties for unauthorised import or possession.
If prescribed / medical: Not confirmed — verify with the Thai FDA / your embassy before travel.
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.

permitfortraveler.fda.moph.go.th · Updated July 14, 2026

Ayahuasca

Legal status: Not confirmed — verify with the Thai FDA / your embassy
Consequences if caught: This specific substance was not named by a reachable Thai source. Thailand controls narcotics (Narcotics Code B.E. 2564) and psychotropics (Psychotropic Substances Act), with severe penalties for unauthorised import or possession.
If prescribed / medical: Not confirmed — verify with the Thai FDA / your embassy before travel.
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.

permitfortraveler.fda.moph.go.th · Updated July 14, 2026

Caffeine

Legal status: Not confirmed — verify with the Thai FDA / your embassy
Consequences if caught: This specific substance was not named by a reachable Thai source. Thailand controls narcotics (Narcotics Code B.E. 2564) and psychotropics (Psychotropic Substances Act), with severe penalties for unauthorised import or possession.
If prescribed / medical: Not confirmed — verify with the Thai FDA / your embassy before travel.
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.

permitfortraveler.fda.moph.go.th · Updated July 14, 2026

DMT

Legal status: Not confirmed — verify with the Thai FDA / your embassy
Consequences if caught: This specific substance was not named by a reachable Thai source. Thailand controls narcotics (Narcotics Code B.E. 2564) and psychotropics (Psychotropic Substances Act), with severe penalties for unauthorised import or possession.
If prescribed / medical: Not confirmed — verify with the Thai FDA / your embassy before travel.
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.

permitfortraveler.fda.moph.go.th · Updated June 25, 2026

DOM

Legal status: Not confirmed — verify with the Thai FDA / your embassy
Consequences if caught: This specific substance was not named by a reachable Thai source. Thailand controls narcotics (Narcotics Code B.E. 2564) and psychotropics (Psychotropic Substances Act), with severe penalties for unauthorised import or possession.
If prescribed / medical: Not confirmed — verify with the Thai FDA / your embassy before travel.
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.

permitfortraveler.fda.moph.go.th · Updated July 14, 2026

DXM

Legal status: Not confirmed — verify with the Thai FDA / your embassy
Consequences if caught: This specific substance was not named by a reachable Thai source. Thailand controls narcotics (Narcotics Code B.E. 2564) and psychotropics (Psychotropic Substances Act), with severe penalties for unauthorised import or possession.
If prescribed / medical: Not confirmed — verify with the Thai FDA / your embassy before travel.
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.

permitfortraveler.fda.moph.go.th · Updated July 14, 2026

Gabapentin

Legal status: Not confirmed — verify with the Thai FDA / your embassy
Consequences if caught: This specific substance was not named by a reachable Thai source. Thailand controls narcotics (Narcotics Code B.E. 2564) and psychotropics (Psychotropic Substances Act), with severe penalties for unauthorised import or possession.
If prescribed / medical: Not confirmed — verify with the Thai FDA / your embassy before travel.
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.

permitfortraveler.fda.moph.go.th · Updated July 14, 2026

GBL

Legal status: Not confirmed — verify with the Thai FDA / your embassy
Consequences if caught: This specific substance was not named by a reachable Thai source. Thailand controls narcotics (Narcotics Code B.E. 2564) and psychotropics (Psychotropic Substances Act), with severe penalties for unauthorised import or possession.
If prescribed / medical: Not confirmed — verify with the Thai FDA / your embassy before travel.
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.

permitfortraveler.fda.moph.go.th · Updated July 14, 2026

HHC

Legal status: Not confirmed — verify with the Thai FDA / your embassy
Consequences if caught: This specific substance was not named by a reachable Thai source. Thailand controls narcotics (Narcotics Code B.E. 2564) and psychotropics (Psychotropic Substances Act), with severe penalties for unauthorised import or possession.
If prescribed / medical: Not confirmed — verify with the Thai FDA / your embassy before travel.
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.

permitfortraveler.fda.moph.go.th · Updated July 14, 2026

LSA (Morning Glory)

Legal status: Not confirmed — verify with the Thai FDA / your embassy
Consequences if caught: This specific substance was not named by a reachable Thai source. Thailand controls narcotics (Narcotics Code B.E. 2564) and psychotropics (Psychotropic Substances Act), with severe penalties for unauthorised import or possession.
If prescribed / medical: Not confirmed — verify with the Thai FDA / your embassy before travel.
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.

permitfortraveler.fda.moph.go.th · Updated July 14, 2026

Memantine

Legal status: Not confirmed — verify with the Thai FDA / your embassy
Consequences if caught: This specific substance was not named by a reachable Thai source. Thailand controls narcotics (Narcotics Code B.E. 2564) and psychotropics (Psychotropic Substances Act), with severe penalties for unauthorised import or possession.
If prescribed / medical: Not confirmed — verify with the Thai FDA / your embassy before travel.
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.

permitfortraveler.fda.moph.go.th · Updated July 14, 2026

Mescaline

Legal status: Not confirmed — verify with the Thai FDA / your embassy
Consequences if caught: This specific substance was not named by a reachable Thai source. Thailand controls narcotics (Narcotics Code B.E. 2564) and psychotropics (Psychotropic Substances Act), with severe penalties for unauthorised import or possession.
If prescribed / medical: Not confirmed — verify with the Thai FDA / your embassy before travel.
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.

permitfortraveler.fda.moph.go.th · Updated June 25, 2026

Methylone

Legal status: Not confirmed — verify with the Thai FDA / your embassy
Consequences if caught: This specific substance was not named by a reachable Thai source. Thailand controls narcotics (Narcotics Code B.E. 2564) and psychotropics (Psychotropic Substances Act), with severe penalties for unauthorised import or possession.
If prescribed / medical: Not confirmed — verify with the Thai FDA / your embassy before travel.
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.

permitfortraveler.fda.moph.go.th · Updated July 14, 2026

MXE

Legal status: Not confirmed — verify with the Thai FDA / your embassy
Consequences if caught: This specific substance was not named by a reachable Thai source. Thailand controls narcotics (Narcotics Code B.E. 2564) and psychotropics (Psychotropic Substances Act), with severe penalties for unauthorised import or possession.
If prescribed / medical: Not confirmed — verify with the Thai FDA / your embassy before travel.
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.

permitfortraveler.fda.moph.go.th · Updated July 14, 2026

PCP

Legal status: Not confirmed — verify with the Thai FDA / your embassy
Consequences if caught: This specific substance was not named by a reachable Thai source. Thailand controls narcotics (Narcotics Code B.E. 2564) and psychotropics (Psychotropic Substances Act), with severe penalties for unauthorised import or possession.
If prescribed / medical: Not confirmed — verify with the Thai FDA / your embassy before travel.
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.

permitfortraveler.fda.moph.go.th · Updated June 25, 2026

Peyote

Legal status: Not confirmed — verify with the Thai FDA / your embassy
Consequences if caught: This specific substance was not named by a reachable Thai source. Thailand controls narcotics (Narcotics Code B.E. 2564) and psychotropics (Psychotropic Substances Act), with severe penalties for unauthorised import or possession.
If prescribed / medical: Not confirmed — verify with the Thai FDA / your embassy before travel.
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.

permitfortraveler.fda.moph.go.th · Updated June 25, 2026

Phenibut

Legal status: Not confirmed — verify with the Thai FDA / your embassy
Consequences if caught: This specific substance was not named by a reachable Thai source. Thailand controls narcotics (Narcotics Code B.E. 2564) and psychotropics (Psychotropic Substances Act), with severe penalties for unauthorised import or possession.
If prescribed / medical: Not confirmed — verify with the Thai FDA / your embassy before travel.
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.

permitfortraveler.fda.moph.go.th · Updated July 14, 2026

Poppers

Legal status: Not confirmed — verify with the Thai FDA / your embassy
Consequences if caught: This specific substance was not named by a reachable Thai source. Thailand controls narcotics (Narcotics Code B.E. 2564) and psychotropics (Psychotropic Substances Act), with severe penalties for unauthorised import or possession.
If prescribed / medical: Not confirmed — verify with the Thai FDA / your embassy before travel.
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.

permitfortraveler.fda.moph.go.th · Updated July 14, 2026

Quetiapine

Legal status: Not confirmed — verify with the Thai FDA / your embassy
Consequences if caught: This specific substance was not named by a reachable Thai source. Thailand controls narcotics (Narcotics Code B.E. 2564) and psychotropics (Psychotropic Substances Act), with severe penalties for unauthorised import or possession.
If prescribed / medical: Not confirmed — verify with the Thai FDA / your embassy before travel.
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.

permitfortraveler.fda.moph.go.th · Updated July 14, 2026

Salvia divinorum

Legal status: Not confirmed — verify with the Thai FDA / your embassy
Consequences if caught: This specific substance was not named by a reachable Thai source. Thailand controls narcotics (Narcotics Code B.E. 2564) and psychotropics (Psychotropic Substances Act), with severe penalties for unauthorised import or possession.
If prescribed / medical: Not confirmed — verify with the Thai FDA / your embassy before travel.
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.

permitfortraveler.fda.moph.go.th · Updated June 25, 2026

Scopolamine (Devil's Breath)

Legal status: Not confirmed — verify with the Thai FDA / your embassy
Consequences if caught: This specific substance was not named by a reachable Thai source. Thailand controls narcotics (Narcotics Code B.E. 2564) and psychotropics (Psychotropic Substances Act), with severe penalties for unauthorised import or possession.
If prescribed / medical: Not confirmed — verify with the Thai FDA / your embassy before travel.
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.

permitfortraveler.fda.moph.go.th · Updated July 14, 2026

THC-P

Legal status: Not confirmed — verify with the Thai FDA / your embassy
Consequences if caught: This specific substance was not named by a reachable Thai source. Thailand controls narcotics (Narcotics Code B.E. 2564) and psychotropics (Psychotropic Substances Act), with severe penalties for unauthorised import or possession.
If prescribed / medical: Not confirmed — verify with the Thai FDA / your embassy before travel.
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.

permitfortraveler.fda.moph.go.th · Updated July 14, 2026

Tobacco

Legal status: Not confirmed — verify with the Thai FDA / your embassy
Consequences if caught: This specific substance was not named by a reachable Thai source. Thailand controls narcotics (Narcotics Code B.E. 2564) and psychotropics (Psychotropic Substances Act), with severe penalties for unauthorised import or possession.
If prescribed / medical: Not confirmed — verify with the Thai FDA / your embassy before travel.
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.

permitfortraveler.fda.moph.go.th · Updated July 14, 2026

Xylazine

Legal status: Not confirmed — verify with the Thai FDA / your embassy
Consequences if caught: This specific substance was not named by a reachable Thai source. Thailand controls narcotics (Narcotics Code B.E. 2564) and psychotropics (Psychotropic Substances Act), with severe penalties for unauthorised import or possession.
If prescribed / medical: Not confirmed — verify with the Thai FDA / your embassy before travel.
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.

permitfortraveler.fda.moph.go.th · Updated June 25, 2026

Drug laws and enforcement change and vary by country. This is not legal advice. Always confirm with the destination’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 →

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