Vyvanse (Lisdexamfetamine) in Thailand: Category 1 Ban, Legal Risk and Alternatives

Lisdexamfetamine (Vyvanse, Elvanse) is a prohibited Category 1 narcotic in Thailand. Plan an alternative before you travel.

Quick reference

  • Drug class: CNS stimulant
  • Controlled substance: Yes, Category 1 narcotic under Thailand's Narcotics Code B.E. 2564 (2021). No medical exemption exists. Import is prohibited outright.
  • Prescription required: N/A, Vyvanse is not legally available in Thailand. No foreign prescription provides authorisation.
  • Available locally: No. Vyvanse and its sibling brand Elvanse are prohibited under Thai law. No amphetamine-based medication is dispensed through any legal pharmacy or hospital channel in Thailand. Methylphenidate (Ritalin, Concerta) is the legal ADHD alternative available at hospital pharmacies with a Thai psychiatrist prescription.
  • Storage: Keep capsules at room temperature (15–30°C). Thailand's ambient heat routinely exceeds 30°C; store in an air-conditioned bag when outdoors. Note: you cannot legally carry Vyvanse into Thailand.
  • Max supply to carry: Zero, import of Category 1 narcotics into Thailand is prohibited regardless of quantity.
  • Key document: A comprehensive medical letter naming Vyvanse and the INN (lisdexamfetamine) is useful only for consulting a Thai psychiatrist about a legal alternative. It does not authorise import or possession.
  • Emergency alternative: Consult a Thai psychiatrist who can assess and prescribe methylphenidate (Ritalin or Concerta), the only ADHD stimulant legally dispensed through hospital pharmacies in Thailand, a formal clinical assessment is required.

Where to find Vyvanse in Thailand

  • Any retail pharmacy chain (Boots, Watsons, local independents)

    Vyvanse (lisdexamfetamine) cannot legally be stocked or dispensed at any retail or hospital pharmacy in Thailand. Do not attempt to purchase it.

    Unknown
  • Hospital pharmacies (e.g. Bumrungrad International, Bangkok Hospital, Samitivej)

    No amphetamine-based medication is dispensed through hospital pharmacies in Thailand. Methylphenidate is available at these sites with a Thai psychiatrist prescription, but Vyvanse is not.

    Unknown

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Vyvanse in Thailand: what the ban means for you

Vyvanse (lisdexamfetamine) and its sibling brand Elvanse are classified as Category 1 narcotics under Thailand's Narcotics Code B.E. 2564 (2021), placing them in the same prohibited category as amphetamine and methamphetamine. This is the defining fact that separates Vyvanse from methylphenidate-based medications like Ritalin and Concerta, which carry a different legal status in Thailand and can be brought in under strict conditions.[1]

There is no import permit, no medical exemption, and no doctor's letter that changes this classification. The Thai FDA's permit system (Form IC-2) covers Category 2 and 3 narcotics only, it does not extend to Category 1 substances. If you currently take Vyvanse or Elvanse, you must plan an alternative before you depart.

Medical disclaimer: This guide is for informational purposes only and does not constitute medical advice. Always consult your prescribing doctor before travelling, particularly regarding medication substitutions, documentation requirements, and legal status in your destination country.

Before you travel

Documentation for travelling to Thailand with Vyvanse

No documentation authorises Vyvanse import into Thailand. The Thai FDA explicitly lists amphetamine and related amphetamine derivatives as prohibited substances with no recognised medical use, and does not issue a permit for their personal importation. A comprehensive medical letter naming Vyvanse (lisdexamfetamine) is still worth carrying, not to clear customs, but to present to a Thai psychiatrist when seeking a legal alternative once in-country.[2]

What your medical letter should include

Ask your prescriber to list the brand name (Vyvanse), the INN (lisdexamfetamine), your current dose, your diagnosis, and their registration number on clinic letterhead. This letter will not authorise import, but it supports a clinical handover to a Thai psychiatrist and is essential if you need local assessment for an alternative such as methylphenidate.

Questions to ask your prescriber before you travel

Bring this list to your appointment well in advance of departure.

  • Is methylphenidate a clinically suitable option for me if Vyvanse is unavailable, and what should a Thai psychiatrist know about my history before prescribing it?
  • Can you provide a letter in English (and ideally Thai) that names Vyvanse, the INN lisdexamfetamine, my diagnosis, dose, and your registration number, for handover to a Thai clinician?
  • If my trip extends, what is the process for obtaining a remote consultation or extended documentation to support a local prescription in Thailand?
  • Are there non-stimulant options such as atomoxetine that may be appropriate as a bridge during my trip?
  • What should I do if I experience a significant symptom change and cannot access a psychiatrist quickly in Thailand?

How much Vyvanse to bring

The answer is none. Because lisdexamfetamine is a Category 1 narcotic in Thailand, you cannot legally carry any quantity of Vyvanse or Elvanse into the country. Do not pack it in hand luggage or checked baggage, and do not attempt to ship it ahead. The only supply planning required before travel is arranging clinical continuity through a legal alternative.

At the airport and border

Customs and security: Vyvanse cannot enter Thailand

Thailand uses a red channel (goods to declare) and green channel (nothing to declare) system at Suvarnabhumi, Don Mueang, and other international airports. Lisdexamfetamine is a Category 1 narcotic and cannot legally pass through either channel. Declaring Vyvanse at the red channel does not provide a legal remedy, it identifies the substance to officers. Possession of a Category 1 narcotic can lead to serious criminal penalties regardless of a foreign prescription.[3]

Personal possession of a Category 1 narcotic in Thailand carries penalties including imprisonment and substantial fines. Unlawful importation carries far harsher sentences up to life imprisonment under the Narcotics Code B.E. 2564 (2021). Do not travel to Thailand with Vyvanse or Elvanse.[1]

While in country

Vyvanse availability in Thailand

Vyvanse vs sibling brands in Thailand

BrandIndicationFormulationAvailability in Thailand
Vyvanse
ADHD (adults and children)
Oral capsule (prodrug of dextroamphetamine)
Prohibited, Category 1 narcotic, no import or local dispensing pathway
Elvanse
ADHD (adults and children)
Oral capsule (same active ingredient as Vyvanse, different commercial name used in Europe)
Prohibited, same Category 1 narcotic status as Vyvanse
Ritalin / Concerta (methylphenidate)
ADHD; narcolepsy
Oral tablet / extended-release tablet
Available, hospital pharmacies only, requires Thai psychiatrist prescription; 30-day import limit for travellers
Strattera (atomoxetine)
ADHD
Oral capsule (non-stimulant)
Available at select licensed pharmacies with prescription; not a controlled substance under Thai law

Vyvanse and Elvanse share lisdexamfetamine as their active ingredient and carry identical legal status in Thailand: both are prohibited Category 1 narcotics with no legal dispensing channel. No retail pharmacy, private hospital, or public hospital stocks either brand.[1]

This is the sharpest legal difference between Vyvanse and its methylphenidate-based alternatives. Methylphenidate (Ritalin, Concerta) is a Category 2 psychotropic in Thailand and is dispensed at hospital pharmacies attached to a psychiatry department, a pathway completely unavailable for lisdexamfetamine. Atomoxetine (Strattera) is a non-stimulant alternative that is not scheduled under Thai law and is available at some licensed pharmacies with a prescription.[4]

A consultation with a Thai psychiatrist at a private hospital such as Bumrungrad International (Bangkok), Bangkok Hospital, or Samitivej costs approximately ฿1,500–฿3,000 (~$43–$86 / ~€40–€78). Methylphenidate at a hospital pharmacy typically costs ฿800–฿2,000 (~$23–$57 / ~€21–€52) per month's supply, depending on the formulation and hospital.

Pharmacy phrases, Thai

“ฉันกำลังมองหายา Vyvanse หรือ Elvanse, คุณมีไหม?”

I am looking for Vyvanse or Elvanse, do you have it?

“ฉันต้องการพบจิตแพทย์เพื่อขอใบสั่งยา methylphenidate”

I need to see a psychiatrist to get a prescription for methylphenidate.

“ฉันมียา lisdexamfetamine (Vyvanse) ที่ประเทศบ้านเกิด, คุณช่วยแนะนำทางเลือกที่ใกล้เคียงที่สุดในไทยได้ไหม?”

I take lisdexamfetamine (Vyvanse) at home, can you advise on the closest legal alternative available in Thailand?

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Switching to a different medication in Thailand

Because Vyvanse and Elvanse share the same active ingredient and the same prohibited legal status, switching between them is meaningless in Thailand. The only path to stimulant ADHD treatment is methylphenidate, which requires a clinical assessment by a licensed Thai psychiatrist before a hospital pharmacy will dispense it.[4]

Methylphenidate and lisdexamfetamine are different drug classes with different receptor profiles and dosing conventions. A switch is not a simple one-to-one substitution, it requires professional clinical oversight. Discuss any potential switch thoroughly with your home prescriber before you travel, so a Thai psychiatrist has a clear clinical picture to work from.

Atomoxetine (Strattera) is a non-stimulant option that does not require a hospital pharmacy and is available at some licensed Thai pharmacies with a standard prescription. It is not interchangeable with a stimulant in terms of mechanism, but your prescriber can advise whether it suits your clinical situation as a bridge during your stay.

Emergencies

What to do if you need ADHD medication urgently in Thailand

If you find yourself without ADHD medication in Thailand, do not attempt to source Vyvanse or Elvanse through any channel, no legal pathway exists for a controlled substance in this category. Go directly to the psychiatry outpatient department of a private hospital: Bumrungrad International (Bangkok, +66 2 066 8888), Bangkok Hospital (+66 2 310 3000), or Samitivej Hospital (+66 2 022 2222). Bring your medical letter naming your diagnosis, your Vyvanse dose, and your home prescriber's details.[4]

A Thai psychiatrist can assess and, if clinically appropriate, prescribe methylphenidate or atomoxetine. Methylphenidate is dispensed only through hospital pharmacies with a psychiatrist prescription, walk-in retail pharmacies cannot fill it. Thailand's general emergency number is 1669 (medical emergency). The tourist police line is 1155.[4]

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Frequently asked questions

Is Vyvanse legal in Thailand?

No, Vyvanse (lisdexamfetamine) is banned in Thailand: it is classified as a Category 1 narcotic under Thailand's Narcotics Code and may not be imported or possessed under any circumstances, even with a valid foreign prescription. Travellers who require ADHD medication should be aware that methylphenidate (Ritalin, Concerta) is the legal alternative available through Thai hospital pharmacies with a Thai psychiatrist's prescription.

Is Vyvanse available in Thailand?

No. Vyvanse (lisdexamfetamine) is a Category 1 narcotic under Thailand's Narcotics Code B.E. 2564 (2021) and is not available through any pharmacy, hospital, or other legal channel in Thailand. No import permit or medical exemption exists for Category 1 substances. Its sibling brand Elvanse carries the same prohibited status.

What is the difference between Vyvanse and Elvanse in Thailand?

Vyvanse and Elvanse share the same active ingredient (lisdexamfetamine) and differ only in their commercial name, Vyvanse is the brand used in North America and some other markets, while Elvanse is the name used in Europe and some Asian markets. In Thailand, both carry identical legal status: Category 1 narcotic, prohibited for import and dispensing. There is no practical difference between them for a traveller to Thailand.

Can I switch from Vyvanse to Ritalin or Concerta in Thailand if Vyvanse isn't available?

Methylphenidate (Ritalin, Concerta) is legally available in Thailand at hospital pharmacies, but it is a different drug class from lisdexamfetamine, not a direct substitute. A licensed Thai psychiatrist must conduct a clinical assessment before prescribing it. Discuss this possibility with your home prescriber before you travel so the Thai clinician has a clear clinical picture. Bring a medical letter with your full medication history.

What happens if I accidentally bring Vyvanse to Thailand?

Possession of a Category 1 narcotic in Thailand is a criminal offence. Penalties for possession include up to two years' imprisonment and fines up to ฿40,000 (~$1,150 / ~€1,050); unlawful importation carries penalties up to life imprisonment under the Narcotics Code B.E. 2564 (2021). A foreign prescription provides no legal protection. If you are in this situation, contact your country's embassy or consulate immediately and seek legal advice.

Is atomoxetine (Strattera) available in Thailand as an alternative to Vyvanse?

Atomoxetine (Strattera) is not a controlled substance under Thai law and is available at some licensed pharmacies in Thailand with a standard prescription. It has a different mechanism from lisdexamfetamine and is not interchangeable without clinical assessment. Ask your home prescriber whether atomoxetine is appropriate for your situation before you travel, as obtaining a local prescription still requires seeing a doctor in Thailand.

Related practical guide

10 Things You Must Do Before Travelling Abroad with ADHD Medication

ADHD stimulants are banned outright in some countries and tightly controlled in many others. Here is the practical checklist every traveller needs before setting off.

Read the practical guide →

Sources

  1. [1] Thailand Narcotics Code B.E. 2564 (2021) — Nomedic ADHD Thailand guide (citing Thai FDA and Narcotics Code)
  2. [2] Thai FDA — Guidance for Travelers Carrying Personal Medications Containing Narcotics or Psychotropic Substances (v5, September 2024)
  3. [3] Thai FDA — Permit for Traveler online portal (Bureau of Narcotic Drugs and Psychotropic Substances)
  4. [4] Thai Consulate Perth — FAQs for Drugs and Narcotics (Thai FDA guidance on ADHD medications including lisdexamfetamine)

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