SILK CLINICTOKYO
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MEDICAL DIET

Medical Diet

Prescribed by our doctors, centred on Mounjaro — a once-weekly injection

*The consultation fee is ¥0 when a prescription is issued (¥5,500 if not prescribed). Okinawa and remote islands: extra shipping of about ¥1,000.

MounjaroOnlinefrom ¥7,280per month・2.5mg, 6+ months1 month only: ¥9,980
Book online consultationAsk on LINE

About Mounjaro

Mounjaro is a once-weekly injection you give yourself. It has a strong effect on appetite, so many people notice a change. The aim is to make eating less feel natural so you can keep going comfortably; the medication alone does not make you lose weight. A doctor checks your medical history and current condition before prescribing.

Mounjaro prices

1-month supply = 4 pens (once a week)

Price per month, by how many months are prescribed (tax included)

Dose1 month2–5 months6+ months
2.5mg¥8,000¥7,500¥7,000
5mg¥14,000¥13,500¥13,000
7.5mg¥22,000¥21,500¥19,900
10mg¥28,000¥27,000¥26,000
12.5mg¥34,000¥33,000¥32,000
15mg¥42,000¥41,000¥40,000

Online prices include the consultation fee and delivery (tax included). For the fee when no prescription is issued and extra shipping to Okinawa and remote islands, see “Cancellation and payment” below. Clinic prices are a little lower than online because there is no delivery cost.

Other medications

Rybelsus (tablet)

A tablet taken once a day on an empty stomach in the morning (like Mounjaro, it works on appetite).
Same price at the clinic and online.

30 tablets = 1 month (tax included)

Dose1 month2–5 months6+ months
3mg¥9,000¥7,000¥6,000
7mg¥17,000¥15,000¥14,000
14mg¥25,000¥23,000¥22,000

Lower prices with Mounjaro or Rybelsus

Medication (1 month)On its ownWith them
Metformin 250mg / 500mg (60 tablets)¥3,500¥1,400
Orlistat 120mg (100 tablets)¥7,500¥6,500
Ezetimibe 10mg (30 tablets)Generic of Zetia¥4,400¥2,200
Canaglu (canagliflozin) 100mg (30 tablets)¥6,500¥4,500
Lusefi (luseogliflozin) 2.5mg (30 tablets)¥6,500¥4,500
Suglat (ipragliflozin) 25mg (30 tablets)¥6,500¥4,500
Dapagliflozin 5mg (30 tablets)Generic of Forxiga¥4,400¥2,200

The doctor decides at the consultation whether these can be prescribed and how they combine. Use of Rybelsus, metformin, SGLT2 inhibitors (Canaglu, Lusefi, Suglat, dapagliflozin) and ezetimibe for weight management is off-label in Japan. Orlistat 120mg is not approved in Japan; we obtain it by personal import at the doctor's discretion. The doctor explains side effects and other details at the consultation.

How online consultation works

  1. 1
    Book

    Choose a date and time on the booking page (KireiPass). A credit card is required. You will receive a confirmation email when your booking is complete. If you have not received it, your booking has most likely not been made, so be sure to check, including your spam folder.

    See how to book (screens)

    How to book on KireiPass, our booking site. The screens are in Japanese, so button names are shown in Japanese with English. The screens are examples from an in-clinic booking. Online booking follows the same steps.

    Online consultations require registering a credit card during booking (not shown in the example screens).

    • 1Tap the booking button

      Tap “Book” on this page, then “Book online consultation”.

    • 2Choose the menu

      From the menu list, choose the Mounjaro menu.

    1. 3Select a date

      Select your preferred date. ○ means available, × means not available.

      Example screen
      Select a date
    2. 4Select a time

      Select your preferred time.

      Example screen
      Select a time
    3. 5Enter your email

      Enter your email address, agree to the Terms of Use and Privacy Policy, then tap “次へ” (Next). If you restrict incoming mail, please allow emails from “@kireipass.jp”.

      Example screen
      Enter your email
    4. 6Open the confirmation email

      Open the URL in the email you received and continue the registration. This address is send-only, so replies will not reach us.

      Example screen
      Open the confirmation email
    5. 7Fill in the questionnaire

      Answer each item of the medical questionnaire. Your booking is not complete yet at this point.

      Example screen
      Fill in the questionnaire
    6. 8Confirm and agree

      Read the details, agree, then tap “予約内容確認へ” (Proceed to confirm).

      Example screen
      Confirm and agree
    7. 9Complete your booking

      Read the notes and tap “予約を確定する” (Complete reservation). Your booking is complete when you receive the completion email.

      Example screen
      Complete your booking
    3 / 9

    ※ Available dates and times vary by period.

  2. 2
    Questionnaire

    Please answer the questionnaire you receive after booking, before your consultation.

  3. 3
    Join Google Meet

    We send the Google Meet link in your confirmation email, or in an email around 10 am on the day (Japan time). At your time, tap the link, tap “Ask to join” and wait. A smartphone or computer is fine (please turn your camera on).

  4. 4
    Reception

    Our staff confirm your name and booking.

  5. 5
    Consultation

    The doctor checks your medical history and current condition and decides the medication and dose.

  6. 6
    Payment details

    Our staff tell you the amount. Let us know here about your preferred delivery date, an English certificate, a receipt, and so on.

  7. 7
    Payment

    Paid with the credit card you registered when booking (bank transfer and PayPay are also available).

  8. 8
    Shipping

    Once payment is complete, we start the shipping process. We usually ship about 2–3 days later (it may take longer when we are busy). Yamato Transport emails you when it ships.

  9. 9
    Delivery

    Arrives 1–2 days after shipping (about 5–7 days after the consultation).

For visitors to Japan

You can consult a doctor online during your stay and receive Mounjaro at your hotel.

Language
Consultations are in Japanese or English. You can also use a translation app, or come with someone who can interpret (we cannot provide an interpreter). You can send questions on LINE in Korean or Chinese. We read them with translation, so our answers may not always be exact.
Refrigerated delivery
Sent by Yamato Transport cool delivery (Mounjaro is always sent refrigerated). It stays refrigerated during transport by cool delivery, including when held at a Yamato office. We do not include ice packs and do not sell cooler bags
To your hotel
Hotels in Japan are fine. Please check in advance that your hotel can receive refrigerated parcels. If you have a hotel reservation number, add it after the address (optional). The parcel can also be received under the name of the person who made the hotel booking
Yamato office pickup
You can pick it up at Yamato Transport offices across Japan, including remote islands such as Tsushima. Bring photo ID such as your passport, and enter the office address in the address field when booking
Shipping notice
When it ships, Yamato Transport emails the address you registered with KireiPass, with a tracking number. You can change the delivery date, time or place from there (changes may not always be possible)
Okinawa and remote islands
Extra shipping of about ¥1,000
Airbnb and other places
We may not be able to guarantee delivery. Office pickup is recommended
If you cannot receive it / not available
We cannot give a refund if the parcel is not received for personal reasons. Unclaimed parcels are returned to us after a holding period, so please arrange delivery through the Yamato email (re-sending costs ¥2,000).
Not available: Leaving at the door, post office pickup, convenience store pickup, or delivery directly to an airport (if the airport has a Yamato Transport counter, office pickup there may be possible)
Delivery date and time
You can choose the date and time, for example to match your hotel check-in. Delivery 5 or more days after your consultation and payment is free; delivery within 4 days costs an extra ¥2,000 because we ship it first.
Taking it home (customs)
We do not issue prescriptions for customs. We can issue an English certificate for Mounjaro bought at our clinic: ¥8,800 for countries that require an additional document (Taiwan, Thailand, China, Hong Kong, Korea, Singapore, UAE, USA, UK/EU, Australia) and ¥5,500 for other countries. The amount you may bring in differs by country, so please check your country's rules.
Storage while traveling
Keep it in the refrigerator. Before you start using a pen, it can be kept at room temperature (up to 30°C) for a total of 21 days. We do not provide cooler bags or ice packs.

Cancellation and payment

  • Consultation fee¥0 when a prescription is issued (included in the price). If the doctor cannot prescribe, the fee is ¥5,500.
  • DeliveryFree anywhere in Japan. Okinawa and remote islands: extra shipping of about ¥1,000 (final amount confirmed at payment).
  • Cancellation and changesFree if you contact us before 8 pm Japan time the day before, and you can change your booking once. Cancelling or changing after 8 pm Japan time the day before costs ¥5,500.
  • PaymentBasically paid after the consultation with the credit card you registered when booking (registering alone does not charge it). Bank transfer and PayPay are also available. We cannot help with transfers from overseas banks, so please check with your bank in advance. Cancellation fees are charged to your registered card. Accepted cards: VISA, Mastercard, AMEX, JCB and Diners. Debit cards may not work, and UnionPay is difficult to use.
  • PricesAll prices include tax.

Frequently asked questions

Online consultation & delivery

How long does delivery take?
About 5–7 days after the consultation. You can also choose a delivery date (see “Delivery” above).
I need it quickly
With priority shipping (¥2,000), if payment is completed by 4 pm on weekdays or 1 pm on weekends and holidays (Japan time), we may be able to deliver the next day or the day after. Delivery may be delayed by the carrier or weather.
When do I get the tracking number?
When it ships, Yamato Transport emails the address you registered with KireiPass, with the tracking number. If you have not received it about 5 days after the consultation, please contact us on LINE.
How does the online consultation work?
By Google Meet. See step 3 of “How online consultation works” above for how the link arrives and how to join.
How long is the consultation?
We aim to finish within a 30-minute slot, but it may run over.
Can I use it if I live abroad?
Yes. However, we can only deliver to addresses in Japan.
Do I need a consultation every time?
Yes. A consultation is needed each time we prescribe, including online.
I did not receive a booking confirmation email
Your booking has most likely not been made. Please check your spam folder; if it is not there, please book again.

Booking & prescriptions

Can I consult in a language other than Japanese?
Consultations are in Japanese or English. You can also use a translation app, or come with someone who can interpret (we cannot provide an interpreter). LINE questions are fine in Korean or Chinese.
How do I fill in the booking form? (visitors)
The booking page is mainly in Japanese, so your browser's translate function helps. For “Furigana”, look up your name in katakana. Your own country's phone number is fine (Korean numbers can be entered as 3-4-4 digits). For the address and postcode, enter those of your hotel (if you are not staying overnight, you may enter 0000000 as the postcode).
Two of us want to see the doctor
Please make one booking per person, each with that person's own email address and phone number (two people cannot book with the same email or phone).
How many months can be prescribed?
In units of 1 month (4 pens), basically up to 6 months. 7 months or more is decided by the doctor (up to 12 months in total).
Are there cases where it cannot be prescribed?
It may be difficult for people with a BMI of 18 or less, those whose other medicines may interact, or those who are pregnant or breastfeeding. Minors cannot use online consultation (they may consult at the clinic with a parent or guardian). The doctor makes the final decision.
Is it covered by insurance?
No. This is self-paid treatment, so insurance does not apply.
Can I get a receipt?
Yes, free of charge. Please tell us during the consultation.
Can I take it home to my country?
That is your own decision. We cannot be responsible if it is confiscated at entry. For Mounjaro bought at our clinic, we can issue an English certificate (¥8,800 for countries that require an additional document, ¥5,500 for others). The amount the certificate can cover: Taiwan 6 months, Thailand 30 days, USA 90 days, China and Hong Kong an amount for personal use, Korea and other countries 3 months. Rules can change, so please also check your destination's official information.
Do you have Wegovy?
We do not handle Wegovy. If you want to switch from Wegovy to Mounjaro, please ask the doctor during the consultation.

About Mounjaro

How much weight will I lose?
Results vary greatly from person to person, and we cannot promise weight loss. Results depend on what and how much you eat, and on exercise.
Why are clinic and online prices different?
Clinic prices are a little lower than online because there is no delivery cost (see the price table).
Will the weight come back if I stop?
Your appetite returns, so if your habits have not changed, the weight tends to come back. It is important to learn the right amount of food while using it.
Does the injection hurt?
The needle is very thin and pain is said to be small (it differs from person to person).

Important information

Risks and side effects

Nausea, diarrhea, constipation and loss of appetite may occur. They are usually strongest when you start or increase the dose and settle as you continue. Rarely, acute pancreatitis, gallbladder problems or low blood sugar can occur. If strong stomach pain continues, see a doctor right away.

Who cannot be prescribed

We cannot prescribe to people being treated for diabetes, people who have had pancreatitis, or people with a history of medullary thyroid cancer or a family member with multiple endocrine neoplasia type 2. It is also not available if you are pregnant, breastfeeding or planning a pregnancy.

Please note

Results vary from person to person, and we cannot promise the same result for everyone. This is private (self-paid) treatment and is not covered by Japanese health insurance. Please tell the doctor about any medication you are taking.

Approval status
Mounjaro® is approved in Japan to treat type 2 diabetes. Use for obesity or weight management is not among its approved indications in Japan (off-label use).
Source
We purchase products distributed through the regular domestic channel from pharmaceutical wholesalers in Japan.
Approved alternatives in Japan
For the treatment of obesity disease, Zepbound® (tirzepatide, the same ingredient as Mounjaro®) and Wegovy® (semaglutide, an injection with the same ingredient as Rybelsus®) are approved in Japan (for people who have high blood pressure, dyslipidemia or type 2 diabetes, have not had enough effect from diet and exercise, and meet conditions such as BMI).
Information from other countries
The U.S. FDA has approved tirzepatide for chronic weight management (product name Zepbound®). The U.S. label lists serious side effects including risk of thyroid C-cell tumors (boxed warning), acute pancreatitis, gallbladder disease (such as gallstones), low blood sugar and worsening kidney function. Health damage from use for purposes other than the approved indications may not be covered by Japan's relief system for adverse drug reactions.

Book or ask us

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