ADHD Medication in Southeast Asia: Adderall and Vyvanse Bans, and What Ritalin Rules Apply

Amphetamines are outright banned in Thailand, Indonesia, Vietnam and the Philippines. Here's what that means for your Adderall, Vyvanse and Ritalin before you fly.

ADHD medication in Southeast Asia: the bans are real and the consequences are serious

Amphetamine, the active ingredient in Adderall, is a Category 1 narcotic in Thailand with no medical exemption^[1]. Carrying it across the Thai border, even with a valid prescription and a doctor's letter, exposes you to criminal prosecution.

This is not a bureaucratic technicality you can talk your way out of at customs. It applies equally to Vyvanse (lisdexamfetamine) in Thailand, Indonesia, Vietnam and the Philippines. Ritalin (methylphenidate) sits in a different legal category and is permitted in some of these countries, but the rules still vary significantly.

Medical disclaimer: This article is for informational purposes only and does not constitute medical advice. Medication laws change. Verify current rules with the relevant embassy or health ministry before you travel, and consult your prescribing clinician before adjusting your treatment.

The amphetamine ban: which countries and which drugs

Adderall contains amphetamine salts. Vyvanse is a prodrug of dextroamphetamine. Both are scheduled under the 1971 Convention on Psychotropic Substances^[2] (INCB Green List, Schedule II). Individual countries layer their own controls on top of that baseline, and several Southeast Asian nations go much further.

Thailand classifies amphetamine as a Category 1 narcotic under the Narcotics Act B.E. 2522. Indonesia lists amphetamine as a Group I narcotic^[3] under Government Regulation No. 44 of 2010, meaning possession carries a minimum custodial sentence. Vietnam prohibits amphetamines under Decree No. 73/2018/ND-CP with no import pathway. The Philippines classifies both amphetamine and methamphetamine as Dangerous Drugs under Republic Act 9165.

Lisdexamfetamine (Vyvanse, Elvanse) falls into the same banned category in Thailand, Indonesia and Vietnam because it metabolises to dextroamphetamine. Bringing it in is not safer because the label says "prodrug".

Methylphenidate (Ritalin, Concerta): permitted but controlled

Methylphenidate occupies a different legal position. It is classified as a Category 2 psychotropic in Thailand under the Psychotropic Substances Act^[4], not a narcotic. That distinction matters: you can enter Thailand with methylphenidate, but only under strict conditions.

In Thailand, you must carry the original prescription, a doctor's letter on headed paper, and no more than a 30-day supply. Concerta (methylphenidate extended-release) is available at hospital pharmacies in Bangkok after a local consultation, but walk-in dispensing for foreign patients is not guaranteed. See our dedicated guide for Concerta in Thailand for more details.

Indonesia classifies methylphenidate as a Group II psychotropic under BPOM (Badan Pengawas Obat dan Makanan) regulations^[5]. A BPOM import permit is required alongside your prescription. The permit process takes time, so apply weeks before departure, not days.

Vietnam restricts methylphenidate imports to a 10-day personal supply under Circular 20/2017/TT-BYT^[6]. That cap is unusually tight. For a trip longer than ten days, you need a formal import authorisation from Vietnam's Drug Administration.

The Philippines requires a PDEA (Philippine Drug Enforcement Agency) permit to import methylphenidate. Without it, the medication can be confiscated on arrival regardless of the prescription you carry.

Country-by-country summary

Thailand: Adderall and Vyvanse are banned outright. Methylphenidate (Ritalin, Concerta) is permitted with a prescription, doctor's letter and 30-day supply cap. See the full Thailand ADHD travel guide for hospital names and consultation costs.

Indonesia: Adderall and Vyvanse are Category I narcotics. Possession carries a minimum custodial sentence with no medical exemption. Methylphenidate requires a BPOM import permit. The full rules are in the Indonesia ADHD travel guide.

Vietnam: Amphetamines are banned. Methylphenidate import is capped at 10 days. Longer trips require Drug Administration of Vietnam authorisation, applied for well in advance.

Philippines: Both amphetamines and methylphenidate are classified as Dangerous Drugs under RA 9165. A PDEA import permit is mandatory for methylphenidate. Without one, the medication will likely be confiscated.

Malaysia: Amphetamines are listed under the Dangerous Drugs Act 1952. Methylphenidate is a controlled substance under Malaysia's Poisons Act 1952, Schedule 1. A valid prescription and declaration at customs are required, with a maximum one-month supply permitted.

Singapore: Amphetamines are Class A controlled drugs under the Misuse of Drugs Act 1973, with no personal-use exemption. Methylphenidate requires a prior authorisation from the Health Sciences Authority (HSA) before import. Applications take several weeks.

What to do if you take Adderall or Vyvanse

There is no legal way to bring Adderall or Vyvanse into Thailand, Indonesia, Vietnam, the Philippines, or Singapore. The medication will be confiscated at a minimum. At worst, you face arrest.

Your options before you travel:

Switch to methylphenidate before departure. Discuss a temporary switch with your prescribing clinician. Methylphenidate is permitted in Thailand, Indonesia (with a BPOM permit), and Malaysia. It is not a guaranteed substitute, and your response to it may differ, so any switch needs adequate trial time before travel.

Explore non-stimulant options. Atomoxetine (Strattera) is not an amphetamine and is not classified as a narcotic in Thailand, Indonesia or Vietnam. Availability varies, but it can be an alternative for some people. Discuss this with your clinician.

Plan a medication gap. Some people choose to manage a short trip without stimulants. This is a clinical decision, not a travel-planning one. Your clinician needs to be involved, and the decision depends on your individual situation.

The documentation you need for methylphenidate

A pharmacy printout or app screenshot is not sufficient. Every country in this region that permits methylphenidate requires a formal prescription from a licensed clinician, on headed paper, with your full name and diagnosis. Some require a certified translation.

For Indonesia, you need to initiate the BPOM permit process through the Indonesian embassy or consulate in your country of residence. The permit is tied to your passport number and travel dates. Start the process at least four to six weeks before departure.

For the Philippines, the PDEA permit application is separate from any embassy process. Contact the PDEA directly or through a licensed importer well before travel. The agency's processing times vary.

Keeping your medication in its original, labelled packaging is essential in every country covered here. Loose pills in an unlabelled container will be treated as unidentified controlled substances at customs.

Carry your records, not just your prescription

A prescription confirms your medication and dose. A full clinical record explains your diagnosis, treatment history and the clinical necessity of what you carry. At a customs inspection or in a medical emergency, that context matters. If you are questioned about a controlled substance at the border, having a structured summary of your medical history in your phone changes the conversation.

Nomedic structures this as an International Patient Summary, the IPS standard used by hospitals and pharmacists internationally. Store your medical records in Nomedic before you travel, and you have a portable, structured health record that works in any country where you need care. Access your medical records to get started before your next trip.

Frequently asked questions

Can I bring Adderall to Bali, Indonesia?

No. Amphetamine, the active ingredient in Adderall, is classified as a Group I narcotic under Indonesian law. There is no medical exemption for personal use. Carrying Adderall into Indonesia puts you at risk of criminal prosecution. Switch to a permitted medication before travel, or consult your clinician about a non-stimulant alternative.

Is Vyvanse legal in Singapore?

Vyvanse (lisdexamfetamine) converts to dextroamphetamine in the body, and amphetamines are Class A controlled drugs under Singapore's Misuse of Drugs Act 1973. There is no personal-use import exemption. You cannot legally bring Vyvanse into Singapore.

Can I get a Ritalin prescription in Thailand if I run out?

Methylphenidate is a Category 2 psychotropic in Thailand and is available at hospital pharmacies, including those at Bangkok's larger private hospitals such as Bumrungrad International and Bangkok Hospital. However, a local consultation with a psychiatrist is required before dispensing. Walk-in refills without a prior appointment are not guaranteed, and the process may take one to two days.

How do I get a BPOM permit to bring Ritalin into Indonesia?

The BPOM (Badan Pengawas Obat dan Makanan) import permit for methylphenidate must be applied for before you arrive. Contact the Indonesian embassy or consulate in your country of residence for the current application process. You will need your original prescription, a doctor's letter, and your travel itinerary. Allow four to six weeks for processing.

What ADHD medications are not banned in Vietnam?

Methylphenidate is not banned in Vietnam, but imports are limited to a 10-day personal supply under Vietnamese pharmaceutical regulations. For trips exceeding 10 days, you need formal authorisation from the Drug Administration of Vietnam, applied for well before departure. Amphetamines, including Adderall and Vyvanse, are prohibited.

Does Malaysia allow ADHD stimulant medication on arrival?

Malaysia permits methylphenidate for personal use under the Poisons Act 1952, with a maximum one-month supply, a valid prescription, and customs declaration. Amphetamines, including Adderall and Vyvanse, are listed under the Dangerous Drugs Act 1952 and are not permitted for import. Keep all medication in its original labelled packaging.