Japan Medication Import Rules 2026: Complete Guide for Travelers

Quick Answer: Can I Bring My Medication to Japan?

Japan strictly regulates medication imports under the Pharmaceutical and Medical Device Act and the Narcotics and Psychotropics Control Act. Every drug falls into one of three categories: (1) Absolutely banned — stimulants containing amphetamine or methamphetamine, cannabis-derived products, and MDMA cannot enter Japan under any circumstances, even with a prescription. (2) Permit required — opioid painkillers (codeine, morphine, oxycodone), ADHD medications containing methylphenidate, and injectable medications need a "Yunyu Kakunin-sho" import certificate from the Kanto-Shinetsu Regional Bureau of Health and Welfare, applied for at least two weeks before travel. (3) Generally allowed — most common OTC medications like ibuprofen, acetaminophen, and antihistamines are fine if you carry no more than a two-month personal supply. If you are unsure about a specific medication, use the TravelSafe Japan Medication Scanner to check instantly.

Absolutely Banned Substances

Japan enforces a zero-tolerance policy on certain substances. Possession alone — even a single tablet — can result in arrest, detention, and deportation. There is no medical exemption for these:

• Amphetamine / Methamphetamine (branded as Adderall, Dexedrine in the US) — classified as stimulants (覚醒剤) under Japan law. Bringing even one pill is a criminal offense punishable by up to 10 years in prison.
• Cannabis / THC products — all forms are illegal, including CBD products that contain any detectable THC. Japan does not recognize US state-level legalization.
• MDMA / Ecstasy — classified as a designated drug (指定薬物). Zero tolerance.
• Psilocybin (magic mushrooms) — banned since 2002 under the Narcotics and Psychotropics Control Act.

Prescription Medications That Need a Permit

If your doctor prescribes any of the following, you must obtain a Yunyu Kakunin-sho (薬監証明 — import certificate) before departure. The application is submitted to the Narcotics Control Department of the Kanto-Shinetsu Regional Bureau of Health and Welfare. Processing takes approximately 10-14 business days.

Medications requiring a permit include:

• Opioid analgesics: codeine (above certain quantities), morphine, oxycodone, fentanyl patches
• Psychostimulants for ADHD: methylphenidate (Ritalin, Concerta) — note that amphetamine-based ADHD medications like Adderall are completely banned, not just permit-required
• Benzodiazepines above a 30-day supply (diazepam, lorazepam, alprazolam)
• Injectable medications of any kind, including insulin and epinephrine auto-injectors (EpiPen)
• Pseudoephedrine-containing products above 2.16g total content (e.g., large quantities of Sudafed)

Over-the-Counter Medications: What Is Safe to Bring

Most common OTC medications are allowed into Japan as long as you bring no more than a two-month personal supply (approximately 60 doses for oral medication). No permit is needed for these:

• Pain relievers: ibuprofen (Advil, Nurofen), acetaminophen/paracetamol (Tylenol, Panadol), aspirin
• Antihistamines: cetirizine (Zyrtec), loratadine (Claritin), diphenhydramine (Benadryl)
• Digestive aids: omeprazole (Prilosec), loperamide (Imodium), bismuth subsalicylate (Pepto-Bismol)
• Cold medications: dextromethorphan-based cough syrups, throat lozenges, saline nasal sprays
• Topical treatments: hydrocortisone cream, antifungal creams, antibiotic ointments

Common Brand Name Reference Table

Many travelers know their medication by brand name, not active ingredient. Here is a quick reference for popular US/UK brands and their Japan import status:

• Adderall (amphetamine) — BANNED. No exceptions. Do not bring.
• Vyvanse (lisdexamfetamine) — BANNED. Metabolizes into amphetamine.
• Ritalin / Concerta (methylphenidate) — PERMIT REQUIRED. Apply for Yunyu Kakunin-sho.
• Tylenol (acetaminophen) — ALLOWED. Bring up to 2-month supply.
• Advil / Motrin (ibuprofen) — ALLOWED. Bring up to 2-month supply.
• Sudafed (pseudoephedrine) — CAUTION. Allowed in small quantities only. Products containing over 2.16g total pseudoephedrine require a permit. Switch to phenylephrine-based Sudafed PE to avoid issues.
• NyQuil (multiple active ingredients) — CAUTION. Some formulations contain pseudoephedrine. Check the label and bring minimal quantity.
• Xanax (alprazolam) — PERMIT REQUIRED if bringing more than 30 days of supply.
• EpiPen (epinephrine auto-injector) — PERMIT REQUIRED. All injectables need a Yunyu Kakunin-sho.
• Insulin (injectable) — PERMIT REQUIRED. Apply early; carry the certificate and doctor's letter.

How to Check Your Medication: Use the TravelSafe Japan Scanner

Not sure whether your specific medication is safe to bring? The TravelSafe Japan Medication Scanner lets you either photograph your medication label or search by ingredient name. The tool cross-references 30+ controlled substances against Japan's import rules and gives you an instant result: allowed, permit required, or banned.

Check your medication now at /tools/medication before you pack. It takes 10 seconds and could save you from a serious problem at Japanese customs.