Permit RequiredNarcotic · Methadone

Is Methadone Legal in Japan?

Reviewed by Dr. Lo and Dr. Lee (PharmD)·Last updated

NCD permit required

Methadone requires an NCD import permit for travel to Japan — but ONLY when prescribed for chronic pain. Methadone prescribed for opioid use disorder maintenance is prohibited from import. Speak with your prescriber and a Japanese addiction specialist before travel.

Japan status

Permit Required

Quantity threshold

Not applicable

Substance class

Narcotic

Why is Methadone controlled in Japan?

Methadone is a Schedule I narcotic. Japan distinguishes between chronic-pain use (permit-allowed) and substance use disorder treatment (prohibited from import) — uniquely strict among major countries.

How to apply for the NCD import permit

  1. 1Apply for the NCD import permit at least 14 days before your arrival date.
  2. 2Doctor's letter (dated within 3 months) must list: your full name, diagnosis, medical necessity, drug name, strength, daily dose, and the prescribing doctor's signature.
  3. 3Attach photos of original packaging showing drug name and strength.
  4. 4You must carry the import certificate with you and present it at customs — not in checked baggage.

Application form: Submit through the Japan Narcotics Control Department (NCD).

NCD import permit application

Frequently asked questions

Can I bring methadone for opioid use disorder treatment to Japan?▼

No. Japan prohibits import of methadone when used for substance use disorder treatment. If you are in a methadone maintenance program, work with both your prescriber and a Japanese clinic well in advance — interruption of treatment without medical supervision is dangerous.

Methadone for chronic cancer pain — allowed?▼

Yes, with an NCD import permit. The doctor's letter must clearly indicate the indication is pain management.

Related medications

MorphinePermit Required

Morphine is a Schedule I narcotic under Japan's Narcotics and Psychotropics Control Law. Personal use is allowed with advance NCD permission.

BuprenorphineConditional

Buprenorphine is a Schedule II psychotropic under Japan's Narcotics and Psychotropics Control Law.

Check your full travel kit

Methadone is just one medication — most travelers carry several. Our free checker reviews your entire prescription list against Japan’s import rules.

Check all my medications

Source: MHLW Narcotics Control Department — Controlled Substances List (12 Dec 2024). Page last reviewed 2026-05-31 by Dr. Lo and Dr. Lee (PharmD). Regulations change — verify with the MHLW Narcotics Control Department before travel. This page is for informational purposes and is not a substitute for advice from your prescribing physician or from a Japanese customs authority.