Bringing Medication to Japan 2026: What You Can't Pack

Most people worry about Japanese customs because of duty. The thing that actually gets travellers detained is the wrong medication. Japan treats Western cold medicines with too much pseudoephedrine as a "stimulant raw material," and it classes amphetamine-based ADHD drugs like Adderall as strictly prohibited — meaning a legal prescription and an honest declaration won't save you. This isn't scaremongering: every year, foreign visitors are stopped at the airport over a single box of cold tablets or ADHD medication. This guide lays out exactly which meds you can't bring, when you need an import certificate, the duty-free and cash limits, and the meat/fruit quarantine rules — so you can defuse the risk before you fly.

Here's the order of priority: medication risk dwarfs the duty-free question. Go over the duty-free allowance and you pay some tax. Bring a banned drug and it's a legal problem. So this guide spends most of its length on medication, with allowances and prohibited goods further down. If you take any long-term medication — especially ADHD, strong painkillers, sleep aids, or codeine cough syrup — read the medication sections in full.

Why bringing medication to Japan is high-risk

The instinct is "it's just my own medicine." But Japan's pharmaceutical and drug-control logic differs from that in the US, Canada, the UK or much of Asia in two key ways.

First, Japan regulates by active ingredient, not by brand or intended use. A medicine you bought to treat a cold might contain pseudoephedrine that, in Japan, is classed as a "stimulant raw material." Customs doesn't care that you use it for congestion — if the ingredient and concentration cross the line, it's controlled. Second, Japan is unusually strict on stimulants — a legacy of post-war drug problems — so the red line for amphetamine-type substances sits far lower than in most countries, and even legal, prescribed use is not waved through.

So "but I have a prescription" is not a universal free pass. For methylphenidate (Ritalin/Concerta), a prescription plus a pre-approved import certificate lets you bring it. For amphetamines (Adderall, Vyvanse), the prescription means nothing — it's still prohibited. That distinction is the single most important sentence in this guide. Here's the detail.

Strictly banned: amphetamine-based ADHD meds

This is the section with the most serious consequences. If you or a travelling companion takes ADHD medication, read every line.

Medications containing amphetamine, dextroamphetamine, methamphetamine, or lisdexamfetamine are classed in Japan as stimulants (or stimulant raw materials) and are prohibited from personal import, with no exceptions. Common brands include:

• Adderall (amphetamine/dextroamphetamine) — banned
• Vyvanse / Elvanse (lisdexamfetamine) — banned
• Dexedrine (dextroamphetamine) — banned
• Any other amphetamine or methamphetamine preparation — banned

The crucial point: a valid foreign prescription does not make it legal, and neither does declaring it honestly. Under Japanese law, bringing in these stimulants can mean arrest, detention, deportation and prosecution, with penalties reaching several years in prison. This isn't hypothetical — Japanese embassies and multiple foreign ministries publish explicit warnings to their own citizens.

The cold-medicine trap: pseudoephedrine & codeine

Most people know the ADHD red line. What actually catches travellers off guard is cold and allergy medicine — because nobody expects a box of Sudafed to be a problem. Two ingredients cause it.

Pseudoephedrine: over 10% and it's a "stimulant raw material"

Pseudoephedrine is the decongestant in many Western cold, sinus and allergy combinations. Under Japanese rules, any product with a pseudoephedrine concentration above 10% is defined as a "stimulant raw material" and is prohibited from import. Products at 10% or below are allowed, but still capped at a two-month supply. Western products frequently named as exceeding the limit or containing controlled ingredients — and best left at home — include:

• Sudafed (pseudoephedrine decongestant)
• Actifed and the Vicks Inhaler
• Some versions of NyQuil, Advil Cold & Sinus, Dristan Sinus
• Other combination cold/sinus tablets listing pseudoephedrine or methamphetamine-related ingredients

Codeine: cough syrup counts as a narcotic

Cough syrups and strong painkiller combinations containing codeine (e.g. some Tylenol with Codeine) are treated as narcotics in Japan, and require advance permission from a Regional Bureau of Health and Welfare regardless of how little you carry. The same advance-permission requirement applies to morphine, oxycodone, hydrocodone, pethidine and fentanyl. Don't pack these like ordinary OTC pills — go through the formal application.

The Yakkan Shoumei import certificate

The "Yakkan Shoumei" is the well-known informal name; the official document is the Yunyu Kakunin-sho (Import Confirmation Certificate). It isn't a ban or a tax — it's a document confirming you've notified the health bureau in advance that you're carrying more than the personal-use limit of your own medication.

You need it above these amounts

How to apply (overview)

1. Gather documents: medication details, prescription or doctor's letter (drug name, ingredients, dosage, course), passport copy, arrival info
2. Complete the forms: the import-certificate application and an itemised medication list (quantity, ingredients), in MHLW's format
3. Send to the right Regional Bureau of Health and Welfare: Japan is split into eight regional bureaus by entry point; submit by email or post
4. Wait for approval: typically 1-2 weeks, longer for complex cases; you receive the import certificate
5. Carry it on arrival: keep the approved certificate with the medication and prescription in your carry-on and show it at customs

Your pre-flight medication checklist

Condensing the rules into what to actually do before you fly:

• List every medication you'll carry (prescription + OTC) and note each one's generic/ingredient name, not just the brand
• Cross-check the banned/controlled list: any amphetamines? pseudoephedrine over 10%? codeine or other narcotics?
• Count the supply: more than 1 month of prescription, or 2 months of OTC? If so, you need an import certificate
• Needs application: Ritalin/Concerta (psychotropic) and narcotics — start 3-4 weeks out
• Strictly banned: Adderall/Vyvanse — talk to your doctor about alternatives and consult the Japanese embassy
• Keep proof: original packaging, boxes, an English/Japanese prescription or doctor's note — all in carry-on
• Minor ailments: consider buying headache/cold/stomach remedies at a Japanese drugstore instead of carrying them

Smooth out the whole entry process too — don't skip the online entry system. Most travellers now pre-fill the customs declaration on Visit Japan Web to speed up clearance; see our Visit Japan Web walkthrough. And for the small details first-timers tend to miss, we rounded them up in the most common first-trip mistakes in Japan.

Duty-free allowances: alcohol, tobacco, goods

With medication handled, here are the general allowances. Per Japan Customs, these apply to non-resident adults aged 20 and over:

Easy things to get wrong: (1) the cigarette allowance is halved — many older articles still say 400; for non-residents it's been 200 since October 2021. (2) Under-20s get no tobacco or alcohol allowance and must pay duty. (3) The 200,000 yen threshold is total market value, not per item — value your high-end buys yourself, and declare over the line in the red channel. Most tourists' souvenirs, snacks and drugstore hauls won't come close; the things to watch are pricey alcohol, designer bags and electronics.

Cash declaration: the 1,000,000 yen rule

Japan has no cap on cash, but a declaration threshold: carrying more than the equivalent of 1,000,000 yen in cash and equivalents (foreign banknotes, traveller's cheques, certain securities and high-value precious metals) into or out of Japan must be declared.

• It's the combined total, not just yen: your TWD, USD, CNY and other banknotes are converted and added together
• Declaring is not confiscation: it's a registration — nothing is force-exchanged or held; but failing to declare when required can mean penalties or the cash being held
• Families: counted per individual traveller — you can't split one declaration to dodge it

In practice, few leisure travellers carry the equivalent of 1,000,000 yen (roughly a few thousand US dollars more than the figure suggests once converted), so most never hit it. But if you plan large cash purchases — luxury goods, expensive lodging — do the conversion, and declare over the threshold rather than gambling.

Prohibited & restricted goods: meat, fruit, fakes

Beyond medication, two categories most often catch travellers. Getting stopped isn't always an offence, but it wastes time and your goods get seized.

Strictly prohibited

• Narcotics and stimulants (including the amphetamine ADHD meds above)
• Firearms, ammunition, explosives, chemical-weapon precursors
• Counterfeit currency, forged cards and securities
• Obscene material and child pornography
• Counterfeit and pirated goods — fake designer bags, fake watches and bootleg media are seized, with fines in serious cases

Quarantine-controlled (the most common trip-up)

• Meat and meat products: generally prohibited from import into Japan — vacuum-packed sausage, ham, jerky, pork floss, meat-containing instant noodles/ready meals, meat mooncakes. This is a priority check against African swine fever and foot-and-mouth disease, and "I just brought some jerky for snacks" is the classic mistake
• Fresh fruit, some vegetables, seeds, plants: subject to plant quarantine — mostly prohibited or requiring inspection
• Pets (cats, dogs, etc.): subject to a strict advance quarantine procedure — you can't just bring them

How to declare: red/green channels & Visit Japan Web

After baggage claim you reach customs, where the flow splits two ways:

• Green channel (nothing to declare): for travellers within the limits and carrying no prohibited/restricted goods — show your declaration and pass quickly
• Red channel (something to declare): over the duty-free allowance, carrying controlled/over-limit medication, cash over the threshold, or quarantine items — declare honestly

Japan now promotes Visit Japan Web, which lets you complete the customs declaration (and immigration data) online before arrival and clear via a QR code instead of a paper form. Filling it in before you fly is strongly recommended — full steps in our Visit Japan Web walkthrough. For basic communication and a few phrases if you get stopped, see our essential Japanese phrases guide. With your online declaration, medication proof and packing sorted, clearance is fast.

One core principle: when in doubt, declare — don't gamble by hiding things. Honest declaration usually ends in paying duty or discarding an item; deliberate concealment, if caught, escalates to fines or worse. It's also worth arranging travel and medical cover before you go, so that needing care or medication in Japan is one less worry — see our Japan travel insurance guide.

Quick-reference table: can I bring it?

One last thing

Japanese customs is genuinely friendly to ordinary tourists — the vast majority sail through with souvenirs, drugstore buys and snacks. The travellers who get into trouble are always over the same few items: amphetamine ADHD meds, Western cold medicine with too much pseudoephedrine, codeine painkillers and cough syrup, and casually packed meat products. Spend ten minutes before you fly checking each medication by ingredient, get an import certificate for anything over the limit, and leave the meat at home, and you've removed about 90% of the risk.

Remember two things: check the ingredient, not the brand — and when in doubt, declare rather than hide. Do the entry prep properly and the rest of the trip is just Japan. Handle the medication question before you fly, not at the airport.

Frequently Asked Questions

Q1：Can I bring my cold or allergy medicine into Japan?

It depends on the active ingredient, not the brand. Japan classes any medicine with pseudoephedrine at a concentration above 10% as a "stimulant raw material," which is prohibited from import. Common Western cold/sinus products that get caught include Sudafed, Actifed, some versions of NyQuil, Advil Cold & Sinus, Dristan Sinus and the Vicks Inhaler. Pseudoephedrine products at 10% or below are allowed, but still subject to a two-month personal-supply limit. Cough or pain medicines containing codeine are treated as narcotics and require advance permission regardless of quantity. The safest move: photograph the ingredient panel before you fly, check it against Japan's Ministry of Health, Labour and Welfare (MHLW) guidance, and if in doubt, just buy an equivalent at a Japanese drugstore on arrival.

Q2：Is Adderall or Vyvanse banned in Japan even with a prescription?

Yes — this is the highest-stakes rule in this guide. Amphetamine-based ADHD medications — Adderall (amphetamine/dextroamphetamine), Vyvanse / Elvanse (lisdexamfetamine), Dexedrine, and anything containing methamphetamine — are strictly prohibited from import into Japan. A valid foreign prescription does not exempt you, and neither does declaring it honestly at customs. Bringing these in can lead to arrest, detention, deportation and prosecution, with penalties under Japanese law reaching several years' imprisonment. Japan banned these stimulants in 1951. Methylphenidate (Ritalin, Concerta) is different — it is a psychotropic and is permitted with an import certificate if you carry more than a one-month supply. If you take Adderall or Vyvanse, speak to your doctor about a permitted alternative and consult the nearest Japanese embassy or consulate before you travel.

Q3：When do I need a Yakkan Shoumei (import certificate) for my medication?

Under MHLW rules, you must obtain an import certificate (Yunyu Kakunin-sho, formerly "Yakkan Shoumei") in advance if you carry more than: (1) a one-month supply of prescription medicine; (2) a two-month supply of over-the-counter (OTC) medicine; (3) 24 units of any single cosmetic or quasi-drug; or (4) syringes/certain medical devices. Psychotropics such as methylphenidate (Ritalin/Concerta) also require it above a one-month supply. The certificate is free, but you apply by email to the Regional Bureau of Health and Welfare covering your arrival airport, and approval typically takes one to two weeks (sometimes longer), so allow plenty of lead time. Within the limits, and provided the ingredients are not prohibited or controlled, you usually do not need a certificate — just pack the meds in your carry-on.

Q4：What is the duty-free allowance for Japan — alcohol and cigarettes?

Per Japan Customs, for non-resident adults (20 and over): 3 bottles of alcohol (about 760 ml each); 200 cigarettes, or 50 cigars, or 10 packs of heated tobacco (IQOS/glo/Ploom), or 250 g of other tobacco — combined, the cap is 250 g. Note the cigarette allowance was cut from 400 to 200 on 1 October 2021, so ignore older guides. Also 2 ounces of perfume (about 56 ml), and up to 200,000 yen total overseas market value for other goods (items under 10,000 yen each are excluded from the calculation). Anyone under 20 pays duty on all tobacco and alcohol. Over any limit, take the red (declaration) channel and pay the duty.

Q5：How much cash can I bring to Japan without declaring it?

There is no limit on how much cash you can carry, but you must declare amounts over the equivalent of 1,000,000 yen — this includes foreign currency, traveller's cheques, certain securities and high-value precious metals. Declaring it is just a registration; nothing is confiscated or force-exchanged. But failing to declare when required can lead to penalties, and the cash can be held. Important: the threshold is the combined total across all currencies, not just yen — your USD, TWD, CNY and so on are converted and added together. For families, the limit applies per individual traveller, so you cannot split one declaration to dodge it.

Q6：What is banned at Japanese customs — can I bring meat or fruit?

Two categories trip travellers up. Strictly prohibited: narcotics and stimulants (including the amphetamine ADHD meds above), firearms and ammunition, explosives, counterfeit currency, obscene material, child pornography, and counterfeit/pirated goods (fake designer bags and watches are seized and can carry fines). Quarantine-controlled: almost all meat and meat products — vacuum-packed sausage, ham, jerky, meat-containing instant noodles and ready meals — are prohibited from import into Japan to guard against African swine fever and foot-and-mouth disease, and "a small bag of jerky" is one of the most common slip-ups. Fresh fruit, some vegetables, seeds and plants require plant quarantine and are mostly restricted. Simple rule: if a food contains meat or is fresh produce, leave it at home — and if unsure, take the red channel and declare it rather than hiding it.

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