The Complete Guide to Japan’s Yunyu Kakunin-sho Application (2025)

You’ve heard the warnings. Japan is incredibly strict about medications. Stories circulate about travelers being detained at customs, prescription bottles confiscated, and even arrests for carrying common medications that are perfectly legal back home. The fear is real, but so is the confusion surrounding the application process.

Maybe you’ve tried researching the Yunyu Kakunin-sho application yourself. You’ve probably found the official Japanese government websites with their dense bureaucratic language, or travel blogs that give conflicting advice. One source says you need a permit, another says you don’t.

Here’s the reality: The official Yunyu Kakunin-sho application forms are intimidating, but the Yunyu Kakunin-sho application process is not impossible to navigate. The key is understanding exactly when you need one and how to complete the application properly as the consequences of getting it wrong can be severe.

1. What is the Yunyu Kakunin-sho Application?

Think of it as your “permission slip” application to bring certain medications into the country. The certificate issued through the Yunyu Kakunin-sho application comes from Japan’s Ministry of Health, Labour and Welfare and must be obtained before you travel.

Where to get your Yunyu Kakunin-sho application: The official application is available ONLY at https://impconf.mhlw.go.jp/about_en.htm – this is the Japanese government’s free, official portal. (See Section 10 for complete step-by-step instructions on accessing and completing your Yunyu Kakunin-sho application.)

This isn’t just bureaucratic paperwork – the Yunyu Kakunin-sho certificate is your legal protection. Without it, medications that require this certificate can be confiscated, and you could face serious legal consequences, including arrest and detention.

3. The 5-Step Yunyu Kakunin-sho Application Process

QUICK START: Ready to begin your Yunyu Kakunin-sho application right now? Go directly to https://impconf.mhlw.go.jp/about_en.htm (the official government portal) and see Section 9 for a detailed walkthrough. Here is an overview of the process:

Step 1: Determine Where to Submit Your Application

Your Yunyu Kakunin-sho application must be submitted to the Regional Bureau of Health and Welfare closest to your arrival airport in Japan. The main contact points for the Yunyu Kakunin-sho application are:

• Narita/Haneda airports: Kanto-Shin’etsu Regional Bureau handles Yunyu Kakunin-sho applications
• Kansai International Airport: Kinki Regional Bureau processes Yunyu Kakunin-sho applications

Step 2: Gather Required Documents

You’ll need these documents to apply:

• Your doctor’s prescription
• Detailed medication letter (active ingredients, dosage, quantity, reason medication is being prescribed, etc)
• Your travel itinerary
• Personal identification

Step 3: Complete the Online Application

You’ll need to create an account and provide detailed information about your medications and travel plans in your Yunyu Kakunin-sho application.

Step 4: Wait for Your Application to be Processed

Submit your Yunyu Kakunin-sho application as early as possible – at least one month before travel. Application processing typically takes 2-3 weeks, but can take longer during busy periods.

Step 5: Receive Approval or Denial

If your Yunyu Kakunin-sho application is approved, you’ll receive a PDF certificate via email. Print this document from your successful Yunyu Kakunin-sho application and carry it with you when traveling to Japan.

5. What to Expect at Japanese Customs with Your Yunyu Kakunin-sho Certificate

When you arrive in Japan with your approved certificate, here’s how to proceed:

• Declare your medications at customs
• Present your Yunyu Kakunin-sho application certificate if requested
• Show your original prescription and doctor’s letter if asked
• Keep medications in original packaging

Remember: Japanese customs officers don’t make exceptions. Having the proper Yunyu Kakunin-sho application documentation is non-negotiable.

6. Medications That Are Completely Banned

Some medications are prohibited entirely in Japan, and your application will be denied:

• Certain ADHD medications
• Some pain medications containing specific opioids
• Particular cold and allergy medications

If your medication is banned, you’ll need to work with your doctor to find an alternative before traveling.

7. Understanding Japan’s Medication Categories

7.1 Ordinary Medications

These include most common over-the-counter drugs like basic pain relievers, antacids, and vitamins. Generally, these can be brought in reasonable quantities without special permits.

7.2 Prescription Medications

All prescription drugs require documentation, but not all require the Yunyu Kakunin-sho. The key factors are quantity and the specific active ingredients.

7.3 Controlled Substances That Require Yunyu Kakunin-sho Application

These are medications containing ingredients that Japan heavily regulates and always require a Yunyu Kakunin-sho application:

• Benzodiazepines (anxiety medications)
• Opioid pain relievers
• ADHD medications (if the ingredients are not banned you must apply for a certificate)
• Sleep aids containing certain compounds
• Some antidepressants

7.4 Prohibited Substances

These medications are completely banned in Japan, and no Yunyu Kakunin-sho application will be approved:

• Adderall and other amphetamine-based ADHD medications
• Certain cough syrups containing codeine
• Some over-the-counter cold medications
• Specific pain medications

8. Detailed Requirements by Medication Type

8.1 Anxiety and Depression Medications

Medications like Xanax, Valium, and Ativan contain controlled substances. For these medications:

• Any amount requires a Yunyu Kakunin-sho application
• You must provide detailed medical justification in your Yunyu Kakunin-sho application
• Yunyu Kakunin-sho application processing can take longer due to additional scrutiny
• Some may be completely prohibited (no Yunyu Kakunin-sho application will be approved)

8.2 Pain Medications

Japan is extremely strict about opioid-based pain medications:

• Morphine-based medications often require special narcotics permits beyond the standard Yunyu Kakunin-sho certificate
• Codeine-containing drugs may be prohibited entirely
• Even prescription-strength ibuprofen may require Yunyu Kakunin-sho certificate
• Tramadol and similar medications may be approved for a certificate

8.3 ADHD Medications

This category is particularly complex:

• Most stimulant-based ADHD medications are prohibited
• Concerta is one of the few ADHD medications where a Yunyu Kakunin-sho application might be approved
• Alternatives may need to be arranged with your doctor before attempting a Yunyu Kakunin-sho application
• Non-stimulant ADHD medications have different Yunyu Kakunin-sho application rules

8.4 Diabetes and Chronic Condition Medications

Medications for ongoing chronic conditions generally have more flexibility in Yunyu Kakunin-sho applications:

• Insulin and diabetes supplies are usually permitted with proper documentation
• Blood pressure and heart medications are typically allowed
• Thyroid medications and hormone treatments require standard Yunyu Kakunin-sho documentation
• Quantities in your Yunyu Kakunin-sho application must match your length of stay plus a reasonable buffer which should be no more than a week’s worth of meds.

9. Step-by-Step Yunyu Kakunin-sho Application Walkthrough

9.1 Before You Start Your Application

Gather all necessary information about your medications:

• Generic names (not just brand names)
• Active ingredient names and concentrations
• Daily dosage amounts
• Total quantity you plan to bring
• Your doctor’s contact information
• Your travel dates and duration

9.2 Creating Your Online Account

The Japanese government uses a digital system for Yunyu Kakunin-sho applications:

• Visit the official Ministry of Health, Labour and Welfare website
• Create an account (you’ll need an email address)
• Verify your account through email confirmation
• Log in and select “Import for Personal Use” to start your application

9.3 Filling Out Your Yunyu Kakunin-sho Application

Here is the detailed information you’ll need to supply:

• Personal details such as passport information, travel dates
• Medication details (exact generic names, quantities, medical justification)
• Doctor’s information and prescription details
• Purpose of travel and length of stay

9.4 Document Upload Requirements

You’ll need to upload several documents with your Yunyu Kakunin-sho application:

• Clear photos or scans of your prescription
• Doctor’s letter explaining medical necessity
• Your passport information page
• Travel itinerary or flight confirmations

9.5 Submission and Tracking Your Yunyu Kakunin-sho Application

After submitting your application:

• You’ll receive a confirmation number
• Use this to track your application status
• Respond promptly to any requests for additional information
• Check your email regularly for updates

10. Regional Bureau Contact Information

10.1 For Tokyo Area Arrivals (Narita/Haneda)

Kanto-Shin’etsu Regional Bureau of Health and Welfare

• Handles the highest volume of applications
• Typically has the most experience with international travelers
• Processing times may be longer due to volume

10.2 For Osaka Area Arrivals (Kansai)

Kinki Regional Bureau of Health and Welfare

• Generally faster processing times
• Smaller volume of applications
• May have different interpretation of requirements

10.3 For Other Arrival Points

Each major airport region has its designated bureau:

• Chubu (Nagoya area)
• Kyushu (Fukuoka area)
• Hokkaido (Sapporo area)
• Contact the specific bureau based on your arrival airport

11. Alternative Strategies When Yunyu Kakunin-sho Isn’t Possible

11.1 Working with Your Doctor

If your application is likely to be denied:

• Discuss alternative medications that are permitted in Japan
• Consider temporary medication switches for travel duration
• Explore non-medication treatment options for short-term travel
• Get detailed documentation about any changes

11.2 Medical Tourism Considerations

Some travelers choose to:

• Schedule medical consultations in Japan to obtain local prescriptions
• Research Japanese healthcare system compatibility
• Consider travel insurance that covers international medical care
• Plan for potential medication gaps during transition

11.3 Travel Timing Adjustments

Strategic timing can help:

• Plan travel during stable periods of your condition
• Allow buffer time before and after travel for medication adjustments
• Consider shorter trips to minimize medication needs
• Coordinate with your healthcare provider on timing

12. What Happens During the Application Review

12.1 Initial Screening

The Japanese authorities will:

• Verify your medication is not on the prohibited list
• Check that quantities match your travel duration
• Ensure all required documents are complete
• Confirm your arrival point matches your application bureau

12.2 Detailed Review Process

For approved applications, they will:

• Verify your prescription authenticity
• Assess medical necessity
• Check for any red flags or inconsistencies
• Cross-reference with immigration records if needed

12.3 Possible Outcomes

Your application can result in:

• Full approval – You receive the certificate for your requested quantities
• Partial approval – Approved for reduced quantities or modified conditions
• Request for additional information – You must provide more documentation
• Denial – Your application is rejected with explanation

13. Customs Procedures at Japanese Airports

13.1 Before You Land

Prepare for arrival:

• Have your Yunyu Kakunin-sho certificate easily accessible
• Keep medications in original packaging
• Organize all prescription documentation
• Prepare for potential questions about your medical condition

13.2 At Customs Declaration

When going through customs:

• Use the “Something to Declare” line
• Present your certificate proactively
• Be prepared to explain your medical condition
• Answer questions honestly and completely

13.3 If Questioned by Officials

Customs officers may:

• Ask about your medical condition
• Request to see your medications
• Verify quantities match your certificate
• Check expiration dates and packaging
• Contact medical authorities if there are concerns

13.4 What Not to Do

Avoid these common mistakes:

• Don’t try to hide medications
• Don’t lie about quantities or medical conditions
• Don’t argue with customs officials
• Don’t assume “just a few pills” won’t matter

14. Troubleshooting Common Problems

14.1 Application Delays

If your application is taking longer than expected:

• Contact the reviewing bureau directly
• Provide any additional requested information promptly
• Consider expedited processing if available
• Have backup travel plans ready

14.2 Medication Changes

If your medication changes after applying:

• Submit a new application immediately
• Don’t assume small changes are acceptable
• Contact the bureau to discuss modification options
• Be prepared for additional processing time

14.3 Last-Minute Travel

If you need to travel before your certificate arrives:

• Contact the bureau to explain your situation
• Consider bringing only quantities that don’t require permits
• Explore emergency processing options
• Have documentation of your application in progress to show customs if asked

15. Cost Considerations

15.1 Application Fees

The Yunyu Kakunin-sho application:

• Is generally free of charge
• May have associated costs for document translation
• Could require medical documentation fees from your doctor
• Might involve international communication costs

15.2 Alternative Costs

Consider expenses for:

• Consulting with travel medicine specialists
• Obtaining Japanese medical care if needed
• Travel insurance with international coverage
• Potential trip delays or cancellations

16. Long-Term and Frequent Travelers

16.1 Multiple Entry Considerations

For frequent Japan travelers:

• Each trip requires a separate application
• Consider maintaining relationships with Japanese healthcare providers
• Explore options for longer-term permits
• Plan medication supplies carefully for multiple trips

16.2 Extended Stay Requirements

For stays longer than typical tourist visits:

• You may need larger quantities of medications
• Consider Japanese healthcare system integration
• Plan for prescription renewals during your stay
• Understand insurance coverage limitations

17. What If You’re Denied?

17.1 Understanding Denial Reasons

Common reasons for rejection include:

• Medication is on the prohibited list
• Insufficient medical justification
• Incomplete or incorrect documentation
• Excessive quantities for travel duration
• Previous issues with medication imports

17.2 Your Options After Denial

If your application is rejected:

• Request detailed explanation of the denial reason
• Work with your doctor to find alternative medications
• Consider submitting a new application with different medications
• Explore non-medication treatment options
• Consider postponing travel until alternatives are arranged

17.3 Appeal Process

While appeals are possible:

• They are rarely successful
• The process can take additional weeks
• Alternative solutions are usually more practical
• Focus on finding workable alternatives instead

18. Resources and Additional Support

18.1 Official Government Resources

• Ministry of Health, Labour and Welfare website
• Regional Bureau contact information
• Official Q&A documents and forms
• Updated prohibited medication lists

18.2 Professional Support Options

Consider consulting:

• Travel medicine specialists
• Pharmacists familiar with international travel
• Healthcare providers with Japan experience
• Travel insurance specialists

18.3 Online Communities and Forums

Connect with other travelers who have navigated this process:

• Expatriate forums focused on Japan
• Medical travel support groups
• Condition-specific communities with travel experience
• Professional travel advisory services

19. Wrap Up

“Final Thoughts: Plan Early, Travel Confidently”

Japan’s medication import process can feel intimidating—but it’s absolutely manageable with the right preparation. The key is starting early, staying organized, and understanding what’s allowed.

Japanese health authorities prioritize public safety, and their medication rules reflect that. Exceptions are rare, and enforcement is strict. But if you follow the proper steps and give yourself time, you can bring the medications you need legally and without incident.

⏰ Start this process as soon as you begin planning your trip—don’t wait until the last minute. Having the Yakkan Shoumei (or Yunyu Kakunin-sho) in hand gives you peace of mind and protects you from serious travel disruptions.

Whether you’re traveling for business, vacation, or medical care, understanding Japan’s medication rules ensures your arrival goes smoothly—and your trip starts off right.

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Need detailed help with your specific medications? Our comprehensive Japan Medication Import Guide includes filled-out sample applications, medication-specific examples, troubleshooting scenarios, and step-by-step screenshots to guide you through every detail of the process.