Bringing Medicines into Japan (Sleep Meds / Psychotropics): What’s Allowed + How to Get Permission

Last updated: 2026-03-04

Japan can be strict about medicines that affect the central nervous system—especially sleep meds, anti-anxiety meds, ADHD meds, and other psychotropics. The mistake that causes trouble is usually simple: travelers check the brand name instead of the active ingredient, or assume a prescription makes it automatically okay.

This guide gives you a safe, step-by-step way to check what you can bring and what paperwork you may need.

This is general information, not legal advice. Always follow your policy wording and Japanese government instructions.

Quick Answer (TL;DR)

For ordinary personal-use medicines, Japan generally allows up to 1 month of prescription drugs and up to 2 months of non-prescription drugs without special procedures.
Controlled substances are handled separately: procedures depend on whether your medicine is a narcotic, psychotropic, stimulant, stimulant raw material, etc.
Some substances (e.g., amphetamine/methamphetamine) cannot be imported even if prescribed overseas.
For many psychotropics, if you stay within the allowed total amount and it’s not an injection, you can carry it without a doctor certificate or advance permission; exceeding the limit triggers extra requirements.

60-Second Decision Box (Start here)

1) What’s the active ingredient (generic name)?
If you only know the brand name, check the box/bottle or your prescription.

2) Check whether the ingredient is “controlled” in Japan.
Use Japan’s official Controlled Substances List (it’s ingredient-based, not brand-based).

3) If it’s NOT controlled:
Follow the general personal-use quantity rule (typically ≤1 month for prescription).
If you need more than the allowed quantity, apply for Import Confirmation (Yakkan Shoumei / Yunyu Kakunin-sho).

4) If it IS controlled:
Follow the category-specific procedure (psychotropics vs narcotics vs stimulants).

Step 1 — Don’t search the brand name. Search the active ingredient.

Japan’s rules are based on ingredients. The official list explicitly notes it does not include brand names.

Examples of “sleep/psych” ingredients that may be controlled as psychotropics include:

Zolpidem (sleep)
Zopiclone (sleep)
Alprazolam / Diazepam / Lorazepam / Clonazepam (anti-anxiety / benzos)
These appear on the official psychotropics list/limits.

Step 2 — Know the big categories (because paperwork depends on it)

Japan splits controlled substances into categories such as:

Narcotics
Psychotropics
Stimulants
Stimulant raw materials
Cannabis / Opium
…and the procedure depends on the category.

Also: some medicines can’t be imported at all, even if they’re prescribed in your country.

Step 3 — Psychotropics (sleep meds & many psych meds): what’s allowed without permission

Japan’s Narcotics Control Department provides a table of psychotropics and maximum total amounts you may carry without:

a doctor certificate, or
advance permission
as long as it’s not an injection and you stay within the stated amount.

Common examples (total amount caps)

Zolpidem: up to 300 mg
Zopiclone: up to 300 mg
Alprazolam: up to 72 mg
Triazolam: up to 15 mg
Methylphenidate: up to 2.16 g

If you exceed the table amount OR it’s an injection form:
You should have a doctor’s certificate stating the diagnosis, medical necessity, drug names, strengths, and quantities.

If the psychotropic amount is more than 1 month supply:
The guidance instructs you to contact the relevant office (it provides a dedicated email).

Practical tip: If your nightly sleep pill is 10 mg, a 30-tablet pack = 300 mg (already at the zolpidem cap). That’s why people get caught by accident.

Step 4 — Narcotics & stimulant raw materials: permission is required before you travel

For narcotics and stimulant raw materials, Japan requires advance permission before you enter/leave Japan carrying them for personal medical use.

The application guidance also lists required documents such as:

application form
doctor’s medical certificate (with specific required contents)
photos of the medicine packaging (name/strength)
…and recommends applying at least 14 days before travel.

Step 5 — Prohibited substances (do not bring)

Japan explicitly lists substances that individual travelers cannot import/export even if prescribed, including:

Amphetamine / Methamphetamine
Heroin
…and others.

A concrete example the government site gives: Adderall (amphetamine) cannot be brought into Japan.
It also notes lisdexamfetamine (Vyvanse/Elvanse, etc.) is treated as a stimulant raw material and requires advance permission.

Step 6 — “Yakkan Shoumei / Import Confirmation” (for non-controlled meds over the quantity limit)

If your medicine is not in the controlled categories but you need to bring more than the general personal-use quantity, you may need Import Confirmation (commonly called Yakkan Shoumei / Yunyu Kakunin-sho). The MHLW provides an online application route.

Step 7 — Don’t mail controlled meds to Japan (and don’t have someone carry them for you)

The application guidance warns you must carry the medicine yourself; you can’t send it to/from Japan or entrust carrying to someone else.
Customs also notes controlled medicines in international mail generally require an import license and may not be importable if the paperwork isn’t provided.

What to pack (so you don’t lose time at the airport)

Even when permission isn’t required, do this:

Keep meds in original packaging
Bring a copy of your prescription
Bring a brief doctor note listing: your name, diagnosis, the medicine, strength, and dosage

If you obtained any certificate/permission, show it to Customs on arrival.

FAQ

“I have a prescription.” Isn’t that enough?

Not necessarily. Japan’s rules depend on the ingredient category, and some substances cannot be imported even with a prescription.

Are sleep meds like Ambien allowed?

Zolpidem is listed as a psychotropic, and the official table shows a total cap (e.g., 300 mg) for carry-in without permission (non-injection, within the cap).

Can I bring ADHD meds?

Some are prohibited (e.g., amphetamine-based), while others may be allowed only with advance permission depending on category.

Travel insurance: exclusions & traps

Pharmacy costs & prescriptions (Japan)

Documents checklist for insurance claims (Japan)

What if you forgot your insurance card?

Source and further reading

MHLW: Importing or Bringing Medication into Japan for Personal Use
https://www.mhlw.go.jp/english/topics/import/

MHLW: Information for those bringing medicines for personal use into Japan + Import Confirmation portal
https://www.mhlw.go.jp/english/policy/health-medical/pharmaceuticals/01.html

Narcotics Control Department (MHLW): Application Guidance + category procedures
https://www.ncd.mhlw.go.jp/en/application2.html

NCD: Psychotropics total amount table (PDF)
https://www.ncd.mhlw.go.jp/dl_data/keitai/total.pdf

NCD: Controlled Substances List (PDF)
https://www.ncd.mhlw.go.jp/dl_data/keitai/cotrolled_substances_list20241212%20.pdf

Tokyo Customs (international mail note)
https://www.customs.go.jp/tokyo/english/yuubin/mayakuoyobikouseisinyaku.htm