France → Japan Mounjaro Travel Guide (2026): Paris to Tokyo Medical Travel

1. Why French residents consider Japan

Mounjaro (tirzepatide) is marketed by Eli Lilly in France under European Medicines Agency (EMA) centralized authorization. It is prescribed for both type 2 diabetes and, since 2024, chronic weight management under specific clinical criteria. The challenge for French patients seeking Mounjaro for weight management is not availability — it is cost and reimbursement structure. Assurance Maladie reimbursement for Mounjaro is heavily restricted to specific diabetes indications; for the weight-loss indication, patients overwhelmingly pay out of pocket at private clinics. Against that backdrop, a growing community of French residents — particularly from Paris, Lyon, and the Cote d'Azur — is flying to Tokyo for a formal prescription from a licensed Japanese physician while also enjoying a classic Japan vacation.

Pricing differential

In France, Mounjaro at private clinics typically costs €300-500 per month for the 2.5 mg starter dose, with higher doses (7.5 mg and above) frequently reaching €500-700 monthly where available. The Japan equivalent at a mid-tier Tokyo private clinic is approximately JPY 19,000 (~€115) per month for 2.5 mg, or JPY 92,000 (~€560) for a 6-month bundle. For a 6-month course, the gap is substantial: €560 in Japan versus €1,800-3,000 in France for the same starter dose, before travel costs. Once you factor in flight and hotel, the trip is typically break-even to modestly cheaper at 2.5 mg, and clearly cheaper at any dose from 5 mg upward — where French prices scale more steeply than Japan's.

Limited reimbursement for weight-loss indication

Assurance Maladie (and most mutuelles) do not cover Mounjaro for weight management outside narrow criteria that most patients do not meet. This means French patients effectively pay full private-clinic pricing on an ongoing basis — often indefinitely, as weight-management treatment is multi-year. For a patient facing €300-500 per month for 12-24 months, the arithmetic of a single Tokyo trip plus a 6-month bundle becomes compelling, even before considering the Tokyo vacation component.

Dose availability across the full range

Japan's Pharmaceuticals and Medical Devices Agency (PMDA) approved Mounjaro for the obesity indication in December 2024, and the drug is now routinely prescribed at licensed private clinics across all six dose strengths (2.5 / 5 / 7.5 / 10 / 12.5 / 15 mg). For a French patient planning a titration protocol over 6-12 months, consistent dose availability matters as much as unit price. Japan's distribution has been reliable since the 2024 approval.

Harvard-trained physician, English or Mandarin direct

Our clinic director, Dr. Masakazu Amano, holds an MPH from Harvard T.H. Chan School of Public Health and is a board-certified internal medicine physician in Japan. He conducts consultations personally in English or Mandarin, without an interpreter chain. For French patients comfortable with English (common among those with international education, EU professional background, or finance/consulting careers), direct English is the fastest and most clinically precise option. For Chinese-French bilingual patients, direct Mandarin consultation is also available. For French-only speakers, Google Meet real-time French translation now works very well for the majority of consultations — see the payment & language section below.

Combining with Tokyo tourism

Tokyo is one of the most popular long-haul destinations for French travelers, and France and Japan maintain exceptionally strong cultural ties (sister cities, dual-language cultural institutions, and significant French expatriate presence in Tokyo). A medical consultation that takes 30-45 minutes by video (or 60 minutes in-person) slots naturally into a classic 4-5 night Tokyo trip. The clinic is in Shinjuku, Tokyo's central business and shopping district. Many French patients explicitly frame the trip as "a Tokyo vacation that pays for itself in medication savings," particularly when traveling in business class (common among French business executives) where the per-trip costs are already allocated to professional travel budgets.

Privacy and separate medical record

France's health data flows through DMP (Dossier Medical Partage) and Assurance Maladie's data infrastructure, visible to any French physician you consult. Patients working in regulated industries (finance, legal, government, aviation, luxury, media) or in high-visibility roles sometimes prefer to keep weight-management treatment outside their local French medical record. A Japanese private clinic operates on an entirely separate medical records system, with no data connection to Assurance Maladie, ANSM, or any French database. English medical summary documents are provided on request if you later want to transition to a French prescriber for continuity.

2. Total cost comparison

Below is a 6-month total cost comparison for a French resident on 2.5 mg Mounjaro. Higher doses amplify the gap further, since Japan's price scaling across dose strengths is more compressed than France's.

French resident (EUR)

At the 2.5 mg starter dose in economy class, a Japan trip typically runs roughly even with 6 months at a French private clinic — and the trip includes a Tokyo vacation. The savings become clear at higher doses. For a French patient at 7.5 mg (where French clinics charge €450-700/month vs ~JPY 35,000-45,000 / €210-275 in Japan), a Japan trip saves €1,400-2,500 on medication alone over 6 months. For patients traveling business class on company allocation, the medication savings are effectively standalone.

3. Flight routes & logistics

France has strong direct connectivity to Tokyo via Paris Charles de Gaulle (CDG), and regional cities route efficiently via CDG or European hubs. Below are the main routes from France's primary departure points.

4. 4-5 night typical itinerary

Because the flight is ~12 hours one way and the time difference is 7-8 hours, a 4-5 night (5-6 day) trip is strongly recommended for French patients. This gives you Day 1 for arrival and jet lag recovery, Day 2 for the consultation, Day 3 for medication receipt and Tokyo tourism, Day 4 for a day trip (Mt. Fuji, Kamakura, or Nikko), and Day 5 for departure. A 3-night trip is technically possible but leaves no buffer for jet lag and effectively eliminates the tourism component that justifies the longer flight.

Patients who want physician presence during their first injection, or who prefer a longer vacation, can extend to 6-7 nights without any clinical disadvantage — the medication is yours once dispensed, and you can combine your Tokyo trip with Kyoto (2.5 hours by Shinkansen) or Osaka if time permits.

5. What to do in Tokyo during the trip

The consultation

The initial consultation is 30-45 minutes and covers medical history, BMI confirmation, prior treatment status (if any), goal setting, Mounjaro pharmacology, side-effect counseling, dose titration schedule, and injection technique. Conducted personally by Dr. Amano in English or Mandarin. For French patients, we recommend one of three approaches: (1) direct English consultation if you're comfortable with medical English (fastest, most precise — common among French patients with international backgrounds); (2) Google Meet with real-time French translation (works well for 95%+ of patients, with the physician speaking at a measured pace and confirming key clinical terms); (3) direct Mandarin consultation if you are Chinese-French bilingual.

In-person visit option

eHealth Clinic Shinjuku is located at Shinjuku 2-6-4, Toyo Building 3F, approximately one minute's walk from Shinjuku-sanchome station exit E1 (Marunouchi line, Fukutoshin line) or six minutes from Shinjuku station east exit. The consultation room is private. In-person visits are useful if you prefer face-to-face discussion, want nursing support for your first injection, or want to combine the visit with Shinjuku-area shopping afterwards.

Medication delivery (two options)

• Hotel delivery via Yamato cold-chain: Most common choice for travelers. Yamato Transport is Japan's premier logistics operator; the refrigerated service (Yamato Cool TA-Q-BIN) maintains 2-8°C throughout transit. Delivered to your hotel typically within 24 hours of consultation. The hotel stores it in staff refrigeration until you collect receipt.
• Clinic pickup: If you choose in-person consultation, you can collect medication the same day. The clinic provides an insulated bag and gel packs for the return trip to your hotel.

First injection training

Mounjaro Ateos is a pre-filled auto-injector designed for self-administration: remove cap, press against abdomen or thigh, press the release button. Total injection time is approximately five seconds. The clinic provides:

• Written step-by-step instructions in English (and Mandarin on request)
• Short demonstration video (downloadable to your phone)
• Optional 10-minute video check-in before your first injection, for live physician guidance
• In-person nursing demonstration during clinic visits (if you opted for in-person consultation)

Tourism combinations for French travelers

Tokyo rewards 4-5 days of exploration. Popular neighborhoods and experiences for French patients:

• Shibuya & Harajuku — Youth fashion, Shibuya 109, Takeshita Street, Yoyogi Park, Meiji Jingu shrine
• Shinjuku — Shopping (Isetan, Lumine, Takashimaya), Shinjuku Gyoen gardens, Golden Gai nightlife, Tokyo Metropolitan Government Building observation decks (free)
• Ginza & Marunouchi — Luxury brands (familiar to French shoppers), Imperial Palace East Gardens, Tokyo Station architecture, three-star French and Japanese restaurants
• Asakusa & Ueno — Senso-ji temple, Nakamise shopping, Tokyo National Museum, Ueno Park
• Akihabara — Electronics, manga, anime culture (strong French interest in Japanese pop culture)
• Roppongi & Tokyo Tower — Mori Art Museum, National Art Center Tokyo (which has hosted major French exhibitions), Tokyo Tower observation
• Day trips — Mt. Fuji (Hakone or Fuji Five Lakes), Kamakura, Nikko. Mt. Fuji is the single most-requested day trip among French tourists.
• Institut Francais du Japon — Near Iidabashi, offers French-language events, a library, and a small cafe — a familiar touchpoint for homesick travelers

6. Bringing medication home

France permits personal import of prescription medication for personal use, subject to quantity limits and documentation requirements. For a deeper general treatment covering all countries, see our customs guide for travelers returning from Japan.

French customs (DGDDI) and ANSM rules

The Direction generale des douanes et droits indirects (DGDDI) and the Agence nationale de securite du medicament et des produits de sante (ANSM) permit personal medication import under the following framework:

• Up to 3 months (90 days) of personal supply: Routinely permitted without special authorization, provided you carry a valid prescription and the medication is clearly for personal use. This is the standard allowance referenced in French personal-use medication import guidance.
• Beyond 3 months: May require specific authorization from ANSM; discretion applies based on documentation quality. If you have purchased a 6-month Japanese bundle, carry the full physician letter and personal use declaration, and declare proactively at customs.
• Mounjaro status: Tirzepatide is EMA-authorized and marketed in France, so officers recognize the brand and active ingredient. This is not an "unknown drug" scenario.

Declaration process at CDG: for personal-use quantities within the 90-day guideline, most travelers pass through nothing-to-declare lane without issue. If carrying a larger supply (3-6 months), proceed to the declaration lane (rouge) and present your English prescription, physician's letter, original packaging, and passport. Processing is typically 5-10 minutes.

Documentation to carry

• English prescription from Dr. Amano (issued by the Japanese clinic) — French translation is not required but can be helpful in rare cases of extended questioning
• English doctor's letter stating the medication is for personal use, with your name, dose, duration, and the clinic's contact details
• Original Mounjaro packaging with Japanese labeling (do not transfer medication to a different container)
• Passport with Japan entry stamp
• Hotel receipts (helpful to demonstrate the trip was legitimate medical/tourism travel, not commercial import)

Cold-chain management during the flight

• Carry-on only — never check Mounjaro in cargo hold
• Use a medical-grade insulated travel pouch with gel ice packs. 12-hour cold-chain pouches are available from pharmacies specializing in travel medicine; a 24-hour pouch provides extra buffer for any flight delays.
• Request the hotel freeze your gel packs overnight before departure
• At HND, NRT, or CDG, inform the airline check-in that you have medically-necessary cold packs; this is permitted under aviation medical exception rules
• Mounjaro tolerates room temperature up to 30°C for up to 21 days per Eli Lilly labeling, so a brief temperature excursion during customs processing is not a problem

7. Follow-up after returning home

Within the 6-month window: video follow-up

You do not need to return to Japan during your initial 6-month prescription window. All follow-up is conducted via video consultation with Dr. Amano, in English or Mandarin (with Google Meet French translation support available for patients who prefer French). Standard follow-up schedule:

• Month 1-3 (dose escalation phase): Monthly video check-ins to confirm tolerability and plan dose escalation (2.5 mg → 5 mg → 7.5 mg)
• Month 4-6 (stabilization): Every 2-3 months, or as needed
• Side effects or questions: Email or video available any time

Dose adjustments are made through this video channel. If you need to step down (e.g., due to GI side effects), the physician re-plans with the pens you already have. No new trip required.

After the prescription runs out: three options

1. Return trip to Japan for a new supply: If the economics continue to favor Japan (very likely at any dose above 2.5 mg), book a repeat trip. Many French patients align repeat trips with another Tokyo vacation or business travel. A 6-month bundle = typically one trip per year for maintenance; two trips per year covers continuous 12-month supply.
2. Transition to a French prescriber: Request an English clinical summary from our clinic before departure (free of charge). This document helps a French physician continue the same dose and monitoring plan. Suitable if you've stabilized on a dose and prefer local continuity, or if French reimbursement conditions evolve favorably over time.
3. Hybrid approach: Use Japan for the active titration and higher-dose phases (where Japan savings are largest) and consider a French prescriber for maintenance at a stable low dose (if local pricing becomes acceptable at that specific dose).

8. Payment & language

Payment methods

The clinic accepts international credit cards including:

• Visa — all major French issuers (BNP Paribas, Credit Agricole, Societe Generale, LCL, Credit Mutuel, Banque Populaire, Caisse d'Epargne, La Banque Postale, HSBC France, Boursorama, Fortuneo, Hello Bank)
• Mastercard — same as above
• American Express — all AmEx cards (including French-issued AmEx)
• JCB — accepted but less commonly issued by French banks

Payment is processed in Japanese yen. Your card issuer applies their foreign currency conversion rate at settlement, typically within a 1-3% band from mid-market. There are no additional surcharges from the clinic. For reference, 1 EUR is approximately 165 JPY in October 2026 (equivalently, 1 JPY is approximately 0.006 EUR). A 6-month bundle at JPY 92,000 converts to approximately €560 at mid-market rates. Travel cards (Revolut, Wise) are also accepted and often provide the most favorable exchange rate.

Consultation language

Dr. Amano personally conducts consultations in English or Mandarin. For French patients, we recommend one of three approaches depending on your comfort level:

• Direct English consultation: Fastest and most clinically precise. Recommended if you're comfortable discussing medical topics in English (common among French patients with international education, Erasmus/overseas work experience, English-medium professional backgrounds in finance, consulting, tech, or luxury).
• Direct Mandarin consultation: Available for Chinese-French bilingual patients. No translation delay.
• Google Meet real-time French translation: For patients who prefer French, Google Meet's real-time captions and translation now work very well in French — closer to native quality than for most other language pairs due to the mature French-English translation models. The physician speaks in English at a measured pace, Google Meet translates to French captions on your screen in real time, and you can respond in French (with English translation shown on the physician's side). This works for the vast majority of French patients. Key clinical terms are confirmed explicitly during the consultation. For patients who prefer additional language support, a professional French translator can also be arranged for the consultation at modest additional cost.

Why language directness matters

Weight-management medication involves nuance: side effect timing, dose adjustment rationale, drug interactions, dietary context (particularly important for French patients with specific gastronomic traditions), and emotional factors around eating behavior. Having a physician who can answer directly (rather than through a two-step translator chain) matters for clinical quality. For French patients, the three-option framework above lets you choose the balance between language comfort and consultation precision that works best for your specific situation.

9. FAQ