Quick summary
Adderall (amphetamine salts) cannot be brought into Japan at all: the Stimulants Control Act has no personal-use exception, no import certificate and no recognition of a foreign prescription. Vyvanse needs advance permission from the Narcotics Control Department, applied for at least 14 days before travel. Methylphenidate (Ritalin, Concerta) needs no import certificate for personal use up to 2.16 g in total.
Pseudoephedrine products above 10 percent are prohibited, and cannabinol has been banned since June 1, 2026. Here is what each rule means for travelers from North America, Europe and Australia or New Zealand, and what to do before booking.
Concerta has been on limited shipment in Japan since a shortage began in September 2025, and shipments were still restricted on October 12, 2026. It is the methylphenidate brand Japan’s rules let visitors carry, and the fallback when the harder rule bites: Adderall cannot enter Japan at all.
The distinction is the compound, not the treatment. Adderall, Dexedrine and generics built on the same compound contain amphetamine salts. A prescription written in the United States, Canada, the UK, Australia or New Zealand has no legal weight against Japan’s ban.
For travelers who need ADHD medicine, methylphenidate makes the trip workable. Cold remedies containing pseudoephedrine, cannabinol products and amounts above the personal-use limits fall under a second set of rules that many travelers first encounter at the customs counter.
Is Adderall illegal in Japan?
Yes. Amphetamine salts cannot be imported into Japan under the Stimulants Control Act. There is no personal-use exception and no import certificate that covers them. The U.S. Embassy in Tokyo states that American prescriptions do not authorise medicines Japanese law prohibits, and the Narcotics Control Department’s position is that bringing amphetamine in is illegal whether it arrives in luggage, by mail or in personal possession.
Can I bring Adderall on a flight to Japan? Not legally; documentation does not change the answer. A doctor’s letter, a pharmacy label and sealed packaging describe your treatment but do not create an import route. Is Adderall used in Japan? No: amphetamine has no approved medical indication there, so no Japanese doctor can prescribe it and no pharmacy stocks it.
Is Adderall the same as Ritalin? No, and the difference decides your trip. Ritalin and Concerta are methylphenidate, a psychotropic that Japan allows in personal-use quantities without an import certificate. Is Adderall a controlled substance? Under Japanese law it sits in the strictest category, alongside the methamphetamine-type compounds the Narcotics Control Department lists as impossible to bring in even with a prescription.
Other borders in the region have their own requirements. The UAE’s medication rules allow detention at Dubai or Abu Dhabi for carrying Adderall or Ritalin without health-ministry pre-approval, and Saudi Arabia’s SFDA clearance requirement applies to Adderall on both arrival and departure.
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What ADHD medications can you legally bring?
Vyvanse (lisdexamfetamine) requires an import certificate at any quantity. The Narcotics Control Department classifies it as a stimulant raw material. A medical certificate from the prescriber travels with it. Vyvanse is approved in Japan only for children, which does not remove the permit requirement.
Ritalin and Concerta do not require a Yunyu Kakunin-sho for personal use up to a one-month supply, with a threshold of 2.16 g of methylphenidate in total. Above that, or for injectable forms, a doctor’s certificate and an import certificate are required. Atomoxetine (Strattera) and guanfacine (Intuniv) are ordinary prescriptions in Japan: up to one month crosses the border with no procedure, while larger amounts need an import certificate.
The Concerta shortage also limits the fallback. The Ministry of Health asked clinics and pharmacies not to over-order in May 2026, and from July 2026 allowed registered pharmacies to move stock between themselves. Japanese methylphenidate prescriptions are valid for four days from issue.
The OTC trap: pseudoephedrine and Vicks
Japan controls pseudoephedrine as a stimulant raw material, and products containing more than 10 percent are prohibited outright. The threshold, not the brand, decides whether a cold remedy can travel with you. The same rule covers combination products: a tablet meant mainly for a blocked nose still counts if pseudoephedrine is on the label.
Vicks VapoRub banned in which countries is a search with a narrow answer for Japan: customs does not target the balm, and the Japanese Vicks ritual of rubbing menthol on the chest is not a legal question. The Vicks products that matter list pseudoephedrine as an active ingredient. Permissible over-the-counter medicines can be brought in up to a two-month supply without an import certificate; larger amounts need one.
Cannabinol is the newest addition to the list. As of June 1, 2026, CBN is prohibited in Japan, putting some sleep and recovery products into the same category as controlled stimulants.
How to apply for permission before you fly
The Narcotics Control Department grants permission, and its guidance is to apply at least 14 days before travel for prescribed narcotics and stimulants. The Ministry of Health, Labour and Welfare says certificates are normally issued within a few business days of a complete application. Applying about three weeks ahead leaves room for corrections and Japanese holiday periods.
The application goes by email, fax or post to the NCD office responsible for the area of your arrival airport. For arrival in one region and departure from another, the entry-area office handles the application and gives export instructions for the return leg.
A doctor’s certificate is required when the amount exceeds the table limits or the medicine is injectable. It must include the patient’s name, the disease being treated, why the medicine is necessary, a list of medicines with doses, the doctor’s signature and an issue date within the last three months. Psychotropics at or below the table amounts may cross without a certificate or permission.
What happens at customs and immigration
Japan is a Level 1 destination on the U.S. State Department’s advisory scale: exercise normal precautions. That rating was issued on May 15, 2025. Visa-free entry covers tourist stays of up to 90 days, with a passport valid for the whole stay and proof of a return or onward ticket. Most visitors are fingerprinted and photographed on arrival.
Customs officers may ask to see import and export certificates.
The Government of Canada’s advisory notes that overstaying the 90-day visa-free limit is a criminal offence. That matters if a customs conversation runs longer than the trip plan allows.
Where the rules change by departure point
Japan’s import rules do not change with your passport. What changes is the paperwork your prescriber can produce and how much lead time the process takes.
North America. Adderall and Dexedrine are banned outright with no exceptions; Vyvanse needs an advance NCD permit plus a doctor’s certificate issued within three months. Methylphenidate is allowed up to 2.16 g in total without paperwork.
Europe (including the UK). The same 2.16 g methylphenidate allowance applies, Vyvanse still needs an advance permit, and anything above the standard allowance needs an import certificate. Pre-approval requires the prescription, a doctor’s letter and flight details.
Australia and New Zealand. The methylphenidate limits and outright ban on Adderall are identical. Vyvanse requires the advance NCD permit, with at least 14 days’ lead time before departure.
The three-week window before you fly
The paperwork clock starts roughly when you book, not when you pack.
- Build the paper trail: match your exact medication against Japan’s MHLW and NCD categories before booking. Read the active ingredient on the label and find it in the category list; check supplements ingredient by ingredient too. For a controlled substance, start the certificate at least 14 days before you fly. A doctor’s certificate issued within the last three months must name the diagnosis, the medicine, the dose and the prescriber’s signature.
- Carry it yourself: medicine in hand luggage, in original packaging, with the certificate and a copy of the prescription. It must not be checked, entrusted to a companion or posted ahead to a hotel.
- Plan the refill gap: foreign prescriptions cannot be filled in Japan, and Japanese methylphenidate prescriptions run 30 days at most.
- Watch: the Narcotics Control Department’s application page, where a change to the 14-day lead time or the 2.16 g allowance would appear first.
The certificate depends on the prescription, the prescription on a prescriber available before you fly, and the trip on nothing going wrong at the border. Leaving the application to the week of departure leaves no time for corrections.
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Questions? Answers.
Can I bring a three-month supply of Concerta if I have a Yunyu Kakunin-sho?
The standard certificate covers a one-month supply of methylphenidate, which is where the 2.16 g threshold comes from. Anything beyond that allowance needs an import certificate backed by medical justification, approved before you fly. If the timing is tight, a consultation with a Japanese doctor for a local prescription is the alternative — but a foreign prescription cannot be filled in Japan.
What ADHD medications are approved for use in Japan?
Concerta (extended-release methylphenidate) is approved for ADHD in Japan, and Vyvanse is approved there only for children — yet it still needs advance NCD permission to bring in. Atomoxetine (Strattera) and guanfacine (Intuniv) are available as ordinary prescriptions. No amphetamine-based medicine is approved for any indication.
Can I mail my medication to my hotel in Japan?
No. Bringing amphetamine into Japan is illegal whether it arrives in luggage, by mail or in personal possession, and controlled medicines must be carried by the traveler rather than sent ahead. The legal route is carrying the medicine yourself with the required certificate.
Are there any exceptions for children with ADHD prescriptions?
No. The rules are written by compound, not by age: a child’s Adderall is as prohibited as an adult’s, and Vyvanse needs the same advance NCD permission at any quantity. Vyvanse is approved in Japan only for children, which does not create an import exemption.
Can I get Adderall from a Japanese doctor once I arrive?
No. Amphetamine has no approved medical use in Japan, so no Japanese doctor can prescribe it and no pharmacy stocks it. Travelers who depend on amphetamine-based treatment either switch to methylphenidate or a non-stimulant before departure, or go without.
Can I bring Adderall into Japan if I have a doctor’s letter?
No. A letter from your prescriber explains your treatment but does not create an import route for a prohibited stimulant. Letters and certificates matter for medicines that have a legal pathway, such as Vyvanse or methylphenidate above the personal-use allowance.
