Is Methamphetamine Legal in Japan?
Prohibited — do not bring
Methamphetamine (Desoxyn) is prohibited in Japan. It cannot be imported under any circumstance, even with a valid prescription from another country. Travelers attempting to bring Methamphetamine (Desoxyn) into Japan risk arrest, detention, and deportation. There is no permit pathway — ask your doctor about a Japan-legal alternative before travel.
Japan status
Prohibited
Quantity threshold
Not applicable
Substance class
Stimulant
Why is Methamphetamine controlled in Japan?
Methamphetamine is prohibited under Japan's Stimulants Control Act with no exception for foreign prescriptions. Possession carries some of the strictest penalties of any drug in Japan, including up to 10 years' imprisonment for personal-use quantities.
What you need to know before travel
- 1A doctor's letter does NOT permit import of prohibited substances — they cannot be brought into Japan under any circumstance.
- 2If you take this medication, ask your prescribing doctor for a written treatment plan documenting an alternative therapy that is legal in Japan.
- 3Carry that alternative-therapy letter at customs in case you are asked to explain why you do not have your usual medication.
Legal alternatives in Japan
Discuss these with your prescriber before travel. Switching medications mid-trip is not advisable.
Methylphenidate (Ritalin / Concerta)
Permit-conditional psychotropic. Speak with a Japanese physician before travel.
Frequently asked questions
Is prescription Desoxyn legal in Japan?▼
No. Desoxyn (methamphetamine) is prohibited under the Stimulants Control Act regardless of foreign prescription. There is no permit pathway.
What is the penalty for bringing methamphetamine to Japan?▼
Personal possession can result in up to 10 years' imprisonment and substantial fines. Customs treats this as a criminal matter, not an administrative violation.
Related medications
Amphetamine is a Schedule I stimulant under Japan's Stimulants Control Act. The law makes no exception for foreign prescriptions — possession, even of small amounts in original pharmacy packaging, is treated as a criminal offense at the border.
Methylphenidate is a Schedule I psychotropic under Japan's Narcotics and Psychotropics Control Law. At 54 mg/day for 30 days, you would carry 1.62 g — well below the 2.16 g threshold, so no permit is needed for a typical 30-day supply.
Check your full travel kit
Methamphetamine is just one medication — most travelers carry several. Our free checker reviews your entire prescription list against Japan’s import rules.
Check all my medicationsSource: 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.