Assessment and checks before infusion
The clinic performs a G6PD test at the first visit. We ask what you hope to achieve, whether you have kidney disease or a history of stones, and what treatment you receive. The physician decides whether an infusion is suitable and what dose to use.
During and after the infusion
The clinic says it uses a product from McGuff in the US. Confirm the specific product, dose, approval status and infusion time beforehand. Tell staff immediately if you feel unwell or have pain at the injection site during the infusion.
If you are receiving treatment
If you are being treated for another condition, also speak with your treating physician. Do not choose the infusion on your own as a substitute for current treatment.
Vitamin C and infusions
Vitamin C is needed to make collagen, which supports skin and blood vessels, and helps absorb iron from plant foods. Humans cannot make vitamin C and obtain it from food and other sources. With oral intake, intestinal absorption is regulated, so blood concentration does not rise in direct proportion to the amount consumed.
Blood concentrations differ after infusion and oral intake. Vitamin C's nutritional role and the effects of an infusion as treatment are separate questions. Safety depends on medical conditions, medicines and dose, even for a familiar substance.
Infusions such as high-dose vitamin C require an advance appointment. Call the clinic before visiting. Same-day care depends on the assessment and explanation. Consultations and visits
| What to tell the physician | What to bring to help explain it |
|---|---|
| Current and past medical conditions | Diagnoses, clinics treating you and recent test results |
| Medicines and supplements | Medication record and notes on product names and doses |
| History of kidney disease or stones | Previous diagnoses and treatment |
| Why you are considering an infusion | What you hope for and what other clinics have told you |
Precautions and risks
In addition to pain at the injection site or feeling unwell, serious side effects have been reported. They include haemolysis in people with G6PD deficiency and kidney damage in people with kidney disease. Review your medical history, medications and kidney function and ask about risks for the specific product and dose.
This is an overview. Please consider a treatment or test after receiving an explanation specific to your care.
Fees and conditions
- Initial total (G6PD test plus 15 g infusion)
- ¥20,900 (including tax)
- Initial cost breakdown, G6PD test
- ¥11,000 (including tax)
- Initial cost breakdown, 15 g infusion
- ¥9,900 (including tax)
- Usual dose from the 2nd session (25 g infusion)
- ¥16,500 (including tax)
The initial total of ¥20,900 includes the ¥11,000 G6PD test and ¥9,900 15 g infusion. The physician decides the dose and whether the infusion can be given that day based on your assessment and test results. Confirm the cost of any additional consultations or tests beforehand.
What to check before your consultation
- Do I need a blood test beforehand?
- What dose will I receive and how long will it take?
- What is the total including tests and consultations?
Write down your questions and bring them with your medication record and previous test results.
How to ask about this serviceReference information
- US National Cancer Institute information on high-dose vitamin C (English)
- NIH information on the physiological role of vitamin C (English)
- US National Cancer Institute patient information on intravenous vitamin C (English)
The general explanation was added on 10 September 2026. The references do not establish which products the clinic uses or indicate approval of an individual service.