💊 Prescription Medication Import Laws
Navigating strict narcotics laws and applying for legal medical certificates.
Banned Over-the-Counter Substances (Pseudoephedrine & Stimulants)
Japan has zero-tolerance laws regarding drugs and stimulants. Many common over-the-counter cold, allergy, and pain medications widely available in Western pharmacies are completely illegal to import into Japan, and carrying them can lead to confiscation, fines, or detention.
- Pseudoephedrine: Any decongestant containing pseudoephedrine (e.g. Sudafed, Advil Cold & Sinus, Claritin-D) is illegal if the concentration exceeds 10%.
- Stimulants & ADHD Medications: Medications containing Amphetamine, Dexamphetamine, or Lisdexamfetamine (e.g. Adderall, Vyvanse) are strictly banned. You cannot bring them into Japan even with a foreign prescription.
- Codeine: Common painkillers containing Codeine are restricted and prohibited unless the active ratio is extremely low.
- Cannabis Products: Medical marijuana, CBD oils, and hemp-derived products are completely illegal.
The Yunyu Kakuninsho Online Permit System
If you need to carry more than a 30-day supply of any standard prescription medication, or if you carry specific restricted medical devices (like insulin pumps or CPAP machines), you must apply for a Yunyu Kakuninsho (輸入確認書)—an official import certificate issued by the Ministry of Health, Labour and Welfare.
Application Protocol:
- Apply Online: Submit your request online via the official portal at least 10 to 14 days before departure.
- Required Documents: You must upload a copy of your passport, a detailed prescription from your physician, and a document outlining the active ingredients, dosage, and exact quantities.
- Upon Approval: You will receive a digital PDF certificate. You must print this document and present it alongside your medication to the customs officer at the airport inspection gate.
Carrying Original Pharmacy Label Packaging
For standard, non-narcotic prescription medications (e.g., blood pressure meds, birth control, asthma inhalers) under a 30-day supply, you do not need a Yunyu Kakuninsho certificate. However, you must adhere to physical transport rules:
- Keep Original Pharmacy Bottles: Never decant your prescription pills into generic daily pill organizers or plastic baggies. Carry them in their original pharmacy bottles or blister packs containing your full name, doctor's name, drug name, and dosage details.
- Doctor's Explanatory Letter: If carrying syringes, needles, or heavy liquid medications, request a brief, signed letter from your physician outlining why you require this equipment.
- Declare at Customs: If a customs officer asks about medication, declare what you have immediately and present the pharmacy labels. Honesty prevents any unnecessary delays.