1. Why Thai residents consider Japan
Mounjaro is commercially available in Thailand through private hospitals in Bangkok, Chiang Mai, and Phuket. On paper, local access exists. In practice, a growing share of Thai residents are flying to Tokyo for their Mounjaro prescription, for five main reasons that recur across patient conversations. The first reason — the recent pause of our Thailand online option — is operational, and reinforces the four underlying structural reasons that already favored a Japan trip for many Thai patients.
Thailand online cross-border service is currently paused
As of October 2026, the previously-available option of receiving a Mounjaro prescription and shipment via cross-border online consultation from Thailand is temporarily paused. Patients who had been using that service have been contacted individually. For new Thai patients, travel to Japan is now the primary channel. If restoration becomes possible, we will update this page and notify registered patients. In the meantime, the Japan-visit path offers something the online option could not: direct face-to-face relationship with a Harvard-trained physician, full dose-range access, and a 6-month supply window.
Pricing differential
In Thailand, Mounjaro 2.5 mg at major Bangkok private hospitals (Bumrungrad International, BNH Hospital, Samitivej, Bangkok Hospital, MedPark) typically costs ฿12,000-18,000 per month, with higher doses (7.5 mg and above) reaching ฿20,000-30,000 monthly. Specialty medical tourism clinics in Phuket and Pattaya quote similar or slightly higher rates. The Japan equivalent at a mid-tier Tokyo private clinic is approximately JPY 20,000 (฿4,500) per month for 2.5 mg. For a 6-month course, the gap is substantial: ฿27,000 in Japan versus ฿72,000-108,000 in Thailand for the same starter dose. The savings widen significantly on higher doses, where Thai pricing scales more steeply than Japan’s relatively flat dose-to-price curve.
Dose availability
Thai patients have reported intermittent supply constraints, particularly for 7.5 mg, 10 mg, and 12.5 mg dose strengths. Pharmacy delays, forced dose splits, or titration pauses have been commonly described in patient-group discussions during 2025-2026. Japan’s Eli Lilly subsidiary distributes all six strengths (2.5 / 5 / 7.5 / 10 / 12.5 / 15 mg) with consistent availability across major private clinics in Tokyo. For a patient on an escalating protocol, this stability is often more important than price.
Chinese-speaking physician for Chinese-Thai patients
Thailand has a substantial Chinese-Thai community (ethnically Thai Chinese, with roots across generations). Many Chinese-Thai patients use Mandarin at home even when English is their professional working language. Our clinic director, Dr. Masakazu Amano, holds an MPH from Harvard T.H. Chan School of Public Health and personally conducts consultations in English or Mandarin — no interpreter chain, no handoff. For Chinese-Thai patients who find clinical nuance easier in Mandarin (particularly around diet, family history, cultural context), this is a differentiator relative to most Tokyo clinics (which operate in English-only or Japanese-with-interpreter mode).
Combining with Tokyo tourism
Tokyo is one of the most popular international destinations for Thai travelers; direct flights from Bangkok run multiple times daily on Thai Airways, JAL, ANA, and Nok Scoot/Zipair, with budget options from AirAsia X out of Don Mueang. A medical consultation that takes 30-45 minutes by video (or 60 minutes in-person) slots easily into a standard 3-4 night Tokyo trip. The remainder of the stay is for Shibuya, Harajuku, Akihabara, Odaiba, Asakusa, Ginza, or day trips to Hakone, Kamakura, or Nikko. Many Thai patients frame this as a Tokyo vacation that pays for itself in medication savings.
Privacy and discretion
Thailand’s private medical community in Bangkok is small and highly interconnected. Patients working in regulated industries (finance, aviation, government), high-visibility roles (media, hospitality), or industries where appearance and weight carry professional implications sometimes prefer to keep weight-management treatment outside their local medical record. A Japanese private clinic operates on an entirely separate medical records system, with no data connection to Thai hospital networks or Thai FDA databases. English medical summary documents are available on request for continuity of care back home.
This guide does not recommend medical travel to Japan for purposes of evading local prescribing regulations or employer disclosure obligations. The legitimate reasons for a Japan Mounjaro trip include price differential, dose availability, physician language choice (English or Mandarin), and convenience of combining medical and tourism travel. All medication brought home should be for personal use only; resale, reshipment, or commercial import is illegal under Thai law and strictly enforced by the Thai FDA and Royal Thai Customs.
2. Total cost comparison
Below is a 6-month total cost comparison for Thai residents starting at the lowest 2.5 mg dose. Higher doses amplify savings significantly, since Japan’s price scaling across dose strengths is flatter than Thailand’s. The “Fly to Tokyo” row assumes a 3-night / 4-day trip, a mid-tier Bangkok-Tokyo round-trip fare, and a Shinjuku-area hotel.
| Scenario (6 months, 2.5 mg) | Medication | Travel & other | Total |
|---|---|---|---|
| Stay in Thailand Bangkok private hospital, 2.5 mg x 6 months |
฿72,000-108,000 | Consultation ฿2,000-5,000 | ฿74,000-113,000 |
| Fly to Tokyo 3-4 night trip + 6-month bundle |
฿21,900 (6 months 2.5 mg) | Flight ฿12,000-25,000 + hotel ฿12,000-15,000 + consultation ฿300 | ฿46,200-62,200 |
| Fly to Tokyo (budget) AirAsia X DMK departure + mid-tier hotel |
฿21,900 | Flight ฿8,000 + hotel ฿12,000 + consultation ฿300 | ฿42,200 |
Net savings at 2.5 mg over 6 months: approximately ฿23,000-59,000 versus staying in Thailand. At higher doses the savings scale: a patient on 7.5 mg (approximately ฿20,000/month in Bangkok vs ~JPY 35,000 / ฿8,300 in Japan) saves roughly ฿70,000 on medication alone over 6 months — well in excess of the trip cost.
3-night / 4-day itinerary + 6-month Mounjaro prescription
*Bundle pricing for the 6-month Japan Mounjaro package at eHealth Clinic Shinjuku is approximately ฿21,900 at 2.5 mg (reflecting bundled consultation and pen pricing). Using the standard monthly rate of ~JPY 20,000, 6 months is roughly JPY 120,000; with the clinic’s bundle discount, the effective rate is lower — see the 6-Month Bundle Economics article for details.
Japan’s dose-to-price scaling is relatively flat (approximately JPY 20,000 for 2.5 mg to JPY 55,000 for 15 mg per month, or roughly ฿4,500 to ฿12,500). In Thailand, higher doses scale much more steeply at private hospitals — a 7.5 mg prescription can run ฿20,000-25,000/month, and 10 mg or 12.5 mg can exceed ฿28,000/month. If you are on 7.5 mg or above, the per-trip savings are typically 1.5-2x larger than the 2.5 mg scenario above, often exceeding ฿80,000 over 6 months.
3. Flight routes & logistics from Thailand
Thailand is well-connected to Tokyo. Direct flights from Bangkok (both BKK Suvarnabhumi and DMK Don Mueang) run multiple times daily. Secondary cities route via Bangkok. Below are the main options and typical fare bands.
Bangkok BKK (Suvarnabhumi)
Bangkok DMK (Don Mueang) — budget travelers
Chiang Mai (CNX) — via Bangkok transit
Phuket (HKT) — via Bangkok transit
Secondary cities (Pattaya, Udon Thani, Krabi, Hat Yai)
Our clinic is at Shinjuku 2-6-4, 3F Toyo Building, one minute’s walk from Shinjuku-sanchome station (Marunouchi / Fukutoshin lines). We recommend staying in Shinjuku, Yoyogi, Harajuku, or Shibuya for both proximity to the clinic (if you choose in-person consultation) and central access to Tokyo tourism. Mid-tier hotels like Sunroute Plaza Shinjuku, Hotel Gracery Shinjuku, Century Southern Tower, or Shibuya Excel Tokyu run JPY 15,000-25,000 per night (฿3,500-5,900).
4. 3-4 night typical itinerary
A 3-night (4-day) trip is standard and sufficient for the full consultation, medication delivery or pickup, first-injection training, and a reasonable amount of Tokyo sightseeing. A 4-night trip adds buffer for in-person consultation flexibility or additional tourism. Below is the sequence most Thai patients follow.
Day 1 (Arrival)
Suvarnabhumi check-in opens 3 hours before departure. Don Mueang (AirAsia X) is simpler, smaller terminal; both have fast immigration lanes for Thai passport holders. Early-morning departures are common for budget flights.
HND arrivals around 15:00-17:00 local time: Keikyu line direct to Shinagawa, transfer to Yamanote line for Shinjuku. NRT arrivals: Narita Express direct to Shinjuku (~90 minutes). Thai passport holders use the automated gate (if biometric-enrolled) or standard immigration counter — typically 10-20 minutes.
Omoide Yokocho, Golden Gai, or any Shinjuku restaurant. Thai food options are easily found in Tokyo but most patients explore Japanese cuisine. Early night recommended before next day’s consultation.
Day 2 (Consultation + Tokyo)
With Dr. Amano, in English or Mandarin. Review of medical history, BMI, current treatment status, dose plan, and side-effect counseling. Alternative: in-person visit at the Shinjuku clinic (1 minute from Shinjuku-sanchome station), approximately 60 minutes with nursing orientation.
Shibuya crossing, Harajuku, Omotesando, Ginza, Akihabara. The clinic is central — Shinjuku Gyoen, Meiji Jingu, and Yoyogi Park are all walking distance. Chinese-Thai patients may enjoy visits to Yokohama Chinatown (30 minutes by train) for familiar food and language.
Day 3 (Medication receipt + sightseeing)
Within 24 hours of consultation, Yamato Transport delivers Mounjaro to your hotel front desk, maintained at 2-8°C throughout. The hotel holds it in staff refrigeration until you check it in. Alternative: clinic pickup for in-person patients (with insulated bag and gel packs provided).
Classic Tokyo tourism day. Thai Buddhist travelers often appreciate visits to Senso-ji temple in Asakusa or the Japanese Buddhist temples in the Nippori / Yanaka area, which share Theravada and Mahayana lineages. For families, teamLab Planets or Odaiba are popular. If this is your first Mounjaro dose, consider doing the first injection in a quiet hotel environment this evening.
Day 4 (Departure)
Place medication in carry-on only with an insulated travel pouch and gel ice packs (hotel will typically freeze gel packs overnight on request). Cargo hold temperatures can drop below freezing and damage tirzepatide. Keep prescription documentation accessible in a sleeve or wallet.
Upon arrival at Suvarnabhumi (BKK) or Don Mueang (DMK), proceed through immigration and then via the red (declare) channel at customs with documentation ready. Declare prescription medication proactively; this is routine for personal-use quantities with proper paperwork.
For patients who want physician presence during their first injection, a 4-night itinerary works better: use Day 3 for in-clinic first injection with nursing support, Day 4 for observation, Day 5 for departure. Most patients find Mounjaro’s auto-injector (Ateos) simple enough that in-person first injection is not strictly required.
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 — no interpreter chain, no handoff to junior staff. For Chinese-Thai patients, the Mandarin option is often the deciding factor among Tokyo clinics.
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 and the clinic reception can assist in English or Mandarin. In-person visits are useful if you prefer face-to-face discussion or want nursing support for your first injection.
Medication delivery (two options)
- Hotel delivery via Yamato cold-chain: Most common choice for traveling patients. 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 check 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 (Mandarin on request)
- Short demonstration video (downloadable to your phone before departure)
- 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
Tokyo is dense and the clinic location is central. Popular combinations for Thai travelers:
- Shopping and dining: Shinjuku, Shibuya, Harajuku, Omotesando, Ginza, Daikanyama
- Culture and history: Asakusa (Senso-ji temple), Meiji Jingu, Imperial Palace East Gardens, Yanaka
- Modern Tokyo: Akihabara, Tokyo Skytree, Odaiba, Roppongi Hills, teamLab Planets
- Thai Buddhist temple visits: Nippori / Yanaka area has several Japanese Buddhist temples with Theravada connections; a half-day visit is possible
- Day trips: Hakone (hot springs, Mt. Fuji views), Kamakura (temples, beach), Nikko (UNESCO shrines)
Dr. Masakazu Amano, clinic director, holds an MPH from Harvard T.H. Chan School of Public Health, is a board-certified internist (Japanese Society of Internal Medicine), and certified nephrologist (Japanese Society of Nephrology). He personally conducts every initial consultation and all video follow-ups, in English or Mandarin. No translator chain, no handoff to junior physicians. For Chinese-Thai patients, this is often the single most important differentiator relative to other Tokyo clinics.
6. Bringing medication back to Thailand
Thailand’s Food and Drug Administration (Thai FDA, ósoró) and Royal Thai Customs permit personal import of prescription medication for personal use, subject to quantity and documentation requirements. For a deeper general treatment, see our customs guide for travelers returning from Japan.
Thai FDA personal-import framework
The standard interpretation of Thai FDA rules for personal medication import is as follows:
- Up to approximately 90 days of personal supply: Routinely permitted when traveling with a valid prescription in English and the medication is for your personal use. This is the practical safe harbor for Thai travelers.
- Beyond 90 days: Discretionary; declare proactively and carry a doctor’s letter confirming the extended course. Risk of customs holding or restricting excess quantity increases, particularly if labeled quantities are visually large.
- Beyond 6 months: Not recommended for a single-traveler personal import; likely to be interpreted as commercial quantity.
- Mounjaro / tirzepatide is a recognized prescription medication in Thailand, so there is no “unregistered drug” concern — this is a quantity question, not a regulatory status question.
Declaration process at Suvarnabhumi (BKK) or Don Mueang (DMK)
- Clear immigration using your Thai passport.
- Collect checked baggage (though Mounjaro itself must be in carry-on).
- Proceed to the red (goods to declare) channel at customs.
- Present your Japanese prescription, English doctor’s letter, original Mounjaro packaging, and passport (showing the Japan entry/exit stamps).
- State clearly: “Personal use prescription medication — yaa taam bai sang paet suan tua.” Processing is typically 5-10 minutes.
Documentation checklist (bring all five)
- English prescription from Dr. Amano, issued by eHealth Clinic Shinjuku, printed on clinic letterhead
- English doctor’s letter stating the medication is for personal use, your name, dose, duration, and clinic contact details — we provide this as a standard document on request
- Original Mounjaro packaging with Japanese labeling intact (do not transfer medication to a different container; do not discard outer boxes)
- Passport with Japan entry stamp
- Hotel receipts and flight itinerary (helpful to demonstrate the trip was medical 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 (6-8 hour rating; a 6-7 hour Bangkok-Tokyo flight is within this envelope)
- Request the hotel freeze your gel packs overnight before departure
- At BKK, DMK, or Tokyo airports, inform the airline check-in that you have medically-necessary cold packs; this is permitted under aviation medical exception rules
- Mounjaro Ateos pens are X-ray safe per Eli Lilly’s official statement; routine airport security screening does not damage the medication
- If customs inspection takes longer than expected, Mounjaro tolerates room temperature up to 30°C for up to 21 days (Eli Lilly label), so a brief temperature excursion is not a problem
Thailand prohibits import of prescription medication for resale, redistribution, or any commercial purpose. “Carrying for a friend,” splitting medication into unlabeled containers, or importing clearly excessive quantities can result in prosecution under the Drug Act B.E. 2510 and related regulations. Royal Thai Customs enforcement has increased focus on GLP-1 class medications. Carry only your personal supply, keep original packaging intact, and never agree to carry medication on behalf of another individual — even family members traveling separately should each carry their own prescription and documentation.
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 prescription window. All follow-up is conducted via video consultation with Dr. Amano, in English or Mandarin, from Thailand. 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 — the 6-month bundle genuinely covers most of the year with just one Japan visit.
After 6 months: three options
- Second Japan trip for a new 6-month supply: If the economics continue to favor Japan (likely at any dose above 2.5 mg), book a second trip. Many Thai patients align this with another Tokyo vacation, Golden Week shoulder-season bookings, or business travel.
- Transition to a local prescriber in Thailand: Request an English clinical summary from our clinic before departure (free of charge). This document helps a Thai prescriber (private hospital endocrinology, specialized weight-management clinic) continue the same dose and monitoring plan. Suitable if you’ve stabilized on a dose and prefer local continuity — particularly if Thailand supply has normalized at your prescribed strength.
- Hybrid approach: Use Japan for the active titration and higher-dose phases (where Japan savings are largest) and switch to local 2.5 mg or 5 mg maintenance (where price differential is smallest). Many urban Thai patients report this as the best cost-convenience balance.
Before leaving Japan, request an English medical summary from the clinic. This document (free of charge) includes your diagnosis, dose history, treatment plan, and physician contact. Useful for:
• Any Thai physician you may consult for continuity
• Private health insurance claims (some international policies cover overseas prescriptions)
• Emergency medical care in Thailand if side effects require local evaluation
8. Payment & language
Payment methods
The clinic accepts international credit cards including:
- Visa — all major Thai bank issuers (Bangkok Bank, Kasikornbank, SCB, Krungthai, Krungsri, TMBThanachart, KTC, Citibank Thailand, Standard Chartered Thailand)
- Mastercard — same as above
- JCB — most Thai-issued JCB cards
- American Express — all AmEx cards
Payment is processed in Japanese yen only; the clinic does not accept Thai Baht cash. Your Thai 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.
Thai Baht to Japanese Yen reference
Reference rate used throughout this guide: 1 THB ≈ 4.2 JPY (or 1 JPY ≈ 0.24 THB). This fluctuates — check your card issuer or an online FX source closer to travel. Example conversions for the budget-conscious:
- JPY 20,000 (one month 2.5 mg) ≈ ฿4,760
- JPY 60,000 (hotel 3 nights mid-tier) ≈ ฿14,300
- JPY 120,000 (6-month 2.5 mg course) ≈ ฿28,500
Consultation language
Dr. Amano personally conducts consultations in English or Mandarin. Specify your language preference when booking. There is no interpreter chain, no translator app, and no handoff to a different physician based on your language choice. This directness matters for clinical nuance — questions about side effects, dose timing, drug interactions, or coexisting conditions are easier to discuss when the person answering is also the one making the medical decision.
Chinese-Thai patients: Mandarin option emphasized
Thailand has one of Southeast Asia’s largest Chinese-descent populations, with Chinese-Thai heritage spanning multiple generations. Many Chinese-Thai patients use Mandarin at home (or Teochew/Hokkien dialects with Mandarin as a formal register) even when English is their professional language. For these patients, discussing weight-management medication in Mandarin — particularly around culturally-specific dietary context, family history, and lifestyle factors — is often more comfortable than in English. Most Tokyo clinics operate in English or Japanese only; our Mandarin option is a specific differentiator.
9. FAQ
Do Thai passport holders need a visa for Japan?
No. Thai passport holders enjoy visa-free entry to Japan for stays of up to 30 days for tourism, business, or personal medical travel. A valid passport with at least 6 months remaining validity is sufficient. Medical travel is considered personal purpose and does not require any special visa category. If you plan to stay longer than 30 days, apply for a short-term visa at the Royal Thai Ministry of Foreign Affairs or a Japanese embassy/consulate before departure.
Can I combine the Mounjaro trip with a Tokyo vacation?
Yes, and most Thai patients do. The consultation itself is 30-45 minutes by video, and medication delivery to your hotel takes less than 24 hours. The remaining 3-4 nights are yours for Shibuya, Harajuku, Akihabara, Odaiba, Asakusa, Ginza, or day trips to Hakone or Nikko. The clinic is in Shinjuku, central to all Tokyo tourism. Many Thai patients already visit Tokyo once or twice a year — the medical component adds negligible time.
What happened to the Thailand online cross-border service?
The Thailand cross-border online consultation and medication delivery service is temporarily paused as of October 2026 due to pending logistics and regulatory review. During this pause, travel to Japan is the primary channel for Thai patients to access our Harvard-trained physician and Japan-pricing Mounjaro. We expect to restore the online option in a future phase; patients already using the online service have been contacted individually with transition instructions.
What if I need to pay with Thai Baht?
The clinic does not accept Thai Baht in cash. Payment is in Japanese yen only, settled by international credit card at your Thai bank’s foreign-currency rate. Visa, Mastercard, JCB, and American Express issued by Bangkok Bank, Kasikorn, SCB, Krungthai, Krungsri, and other Thai banks are all accepted. Settlement typically happens within 1-3 business days at your card’s mid-market rate plus the issuer’s standard FX margin.
I am Chinese-Thai — can I have my consultation in Mandarin?
Yes. Dr. Amano personally conducts consultations in English or Mandarin without an interpreter chain. For Chinese-Thai patients (many of whom use Mandarin at home even if English is their professional language), this is often a decisive factor among Tokyo clinics. Specify your language preference (English or Mandarin) when booking. The same physician handles your initial consultation and all video follow-up.
I live in Chiang Mai (or Phuket). Do I have to go via Bangkok?
Yes, Bangkok transit is standard. From Chiang Mai (CNX), domestic flights to BKK take about 70 minutes and run frequently with Thai Airways, Thai AirAsia, Thai Smile, and Nok Air. From Phuket (HKT), BKK is about 85 minutes. You can book connecting itineraries on the same airline (e.g., Thai AirAsia CNX → BKK → NRT) for baggage protection. Secondary cities like Udon Thani (UTH), Krabi (KBV), and Hat Yai (HDY) similarly transit via BKK. Total door-to-door time typically adds 3-5 hours vs direct departure from Bangkok.
Can family members travel with me and also get a prescription?
Yes, but each person needs their own separate consultation and prescription. We cannot issue a prescription for someone who has not personally completed a consultation with our physician. We often book family consultations back-to-back on the same day to minimize scheduling friction. Each patient’s medical history, BMI, and dose plan is assessed individually. Pediatric patients (<18 years) are not candidates for Mounjaro. Each adult must also handle their own customs declaration on return — one person cannot “carry” for another.
What if I experience side effects during my Tokyo trip?
Contact the clinic directly via email or video. Most common side effects (nausea, mild GI symptoms, fatigue) resolve within 1-2 weeks of dose initiation and are manageable. For acute severe symptoms (severe abdominal pain, allergic reaction, persistent vomiting), seek emergency care at a Tokyo hospital — Tokyo Medical University Hospital, Keio University Hospital, and St. Luke’s International Hospital all accept international patients and have English-language services. Show them your clinic prescription and English medical summary for faster triage.
Can I bring a 12-month supply back to Thailand?
No. Two constraints apply: (1) Japanese prescribing regulations limit a single Mounjaro prescription to a maximum of 6 months, and (2) Thai FDA personal-import allowance is typically interpreted as approximately 90 days of personal supply. For a 6-month course, carry up to 90 days on your person with full documentation, and return to Japan or transition to a local prescriber for the remainder. Most Thai patients cover a full year with two trips, aligned with Tokyo vacations or business travel.
Do I need to fly back to Japan for follow-up visits?
No. All follow-up consultations are conducted by video with the same Harvard-trained physician who issued your original prescription, in English or Mandarin. Dose adjustments, side-effect management, and treatment evaluation are handled entirely online from Thailand. You only need to return to Japan when your supply runs out and you want a new prescription (or you can transition to a Thai local prescriber at that point).
What’s the risk of Thai customs confiscating my medication?
Very low when you follow the proper procedure: stay within the ~90-day personal-use quantity interpretation, carry complete documentation (English prescription, doctor’s letter stating personal use, original packaging intact), and declare proactively through the red channel at BKK or DMK. Confiscation typically occurs only when travelers exceed quantity limits without documentation, carry medication in unlabeled containers, or attempt to carry commercial quantities. If an officer has questions, politely present documentation and ask for a supervisor if needed.
When will the Thailand online option be restored?
We do not have a confirmed restoration date as of October 2026. The pause relates to logistics and regulatory review that are outside typical clinical timelines. Patients can register their interest for notification when the online option returns. In the meantime, travel to Japan remains the primary and recommended channel; follow-up after your trip is already fully video-based regardless of initial consultation modality, so returning Thai patients continue to receive the same ongoing care online.
Online video consultation (English or Mandarin): Book online consultation (Ambii) →. In-person visit at Shinjuku clinic (1 minute from Shinjuku-sanchome station): Book in-person visit →. Specify your language preference (English or Mandarin) in the booking notes.
References
- Thai Food and Drug Administration (Thai FDA) — Personal Importation of Medicines guidance
- Royal Thai Customs — Red and Green Channel procedures
- Ministry of Foreign Affairs of Japan — Visa-Free Entry for Thai Passport Holders
- Eli Lilly — Mounjaro Japan Obesity Approval (December 2024)
- Eli Lilly — Mounjaro Ateos pen storage and X-ray safety official statement
- SURMOUNT-1 clinical trial — New England Journal of Medicine, July 2022
- Mounjaro (tirzepatide) prescribing information, Eli Lilly & Company
- Japan Society for the Study of Obesity (JASSO) treatment guidelines