Quick Intro

VEI Clinic Apgujeong is an English-friendly internal-medicine clinic in Gangnam offering same-day injections/IVs with doctor oversight. We’re on the 3rd floor of Beneheim City, 162 Apgujeong-ro, a short walk from Apgujeong Station (Exit 5).


What Do People Mean by “Mega Dose Vitamin C Shot”?

“Mega dose” usually refers to multi-gram (high-dose) Vitamin C, which in medical settings is typically given by IV because intramuscular (IM) shots are limited to small volumes per site (generally a few mL). Common Vitamin C injection strength is 500 mg/mL, so true multi-gram dosing would require large, painful IM volumes or multiple sites—another reason IV is often chosen. We’ll advise the safest route after your exam.


Pharmacology note: IV Vitamin C reaches far higher blood levels than oral dosing at the same amount; that’s why most “mega dose” protocols are IV-based.

Who It May Help (Common Reasons People Ask)

  • Feeling run-down after long flights or heavy work weeks
  • Post-illness recovery when oral intake has been low
  • Interest in adjunctive antioxidant support while you optimize sleep, nutrition, and stress

Your physician confirms candidacy and whether IM vs IV is appropriate for your goals.


Evidence & Expectations (Read Before You Book)

  • For wellness uses in otherwise healthy people, evidence is limited; IV Vitamin C has been generally well tolerated in trials, but clinical benefits vary by condition and study design. It is not a cure for illness.
  • Specialty/high-dose oncology or critical-care protocols are separate and require strict screening; these are not routine wellness shots. 터


Safety First (Why We Screen)

  • Kidney: High-dose Vitamin C can raise oxalate, and rare cases of oxalate nephropathy/worsening kidney injury have been reported—screening matters if you have kidney disease or stone history.
  • G6PD deficiency: High-dose Vitamin C has been linked to hemolysis in G6PD-deficient patients; many protocols check G6PD before high-dose IV.
  • Diabetes & glucose monitors: High-dose Vitamin C can falsely elevate certain point-of-care and CGM glucose readings. Tell us if you use a hospital meter or wear CGM; we’ll advise safe monitoring.
  • Labeling note: FDA-approved ascorbic acid injection is indicated for short-term treatment of scurvy, not general wellness megadosing; we practice transparent, physician-guided use.

Tell the doctor if you have: kidney disease/stones, hemochromatosis/iron overload, liver or heart disease, are pregnant/breastfeeding, have G6PD deficiency, or take anticoagulants/diuretics.
 Common mild effects: temporary flushing/chill, vein or injection-site irritation, small bruise. Seek urgent care for severe dizziness, chest pain, breathing difficulty, or signs of infection.


Visit Flow (Typically 45–90 Minutes)

  1. Check-in & history → symptoms, goals, meds, allergies, kidney/stone history, diabetes tech (CGM).
  2. Focused exam → vitals; labs as indicated (e.g., G6PD before high-dose IV).
  3. Plan & consent → candidacy confirmed, route & dose selected, transparent pricing reviewed.
  4. Injection or IV session → monitored; we titrate for comfort and safety.
  5. Discharge guidance → simple after-care in clear English; follow-up if needed.


After-Care Tips

  • Hydrate with water or oral rehydration for 24 hours.
  • Eat a light, balanced meal (protein + complex carbs + produce).
  • If you use CGM or finger-stick meters, follow our instructions for any temporary reading interference.
  • Contact us if symptoms persist or worsen.


What to Bring

  • Photo ID (passport if visiting)
  • Medication & supplement list (exact doses)
  • Kidney stone/kidney disease history, recent labs if available
  • Any diabetes device info (CGM/model)


Why VEI Clinic Apgujeong

  • Internal-medicine oversight for every injection/IV
  • English-friendly explanations and take-home instructions
  • Same-day options for travelers and busy schedules
  • Central Gangnam location (Apgujeong/Sinsa) with private rooms


Location & Access

  • Address: Beneheim City, 3F, 162 Apgujeong-ro, Gangnam-gu, Seoul
  • Subway: Apgujeong Station (Exit 5), short walk


Pricing & Transparency

Costs vary by evaluation, route (IM vs IV), and dose. You’ll receive a clear quote before treatment. Package options may be available for eligible patients.


Related Services (Case-by-Case)

  • Vitamin C IV (high-dose IV for appropriate candidates with screening)
  • Hydration Support IV (when oral intake is difficult)
  • Recovery/Immune Support IV (physician-selected blends)
  • Vitamin D or B12 Shots (lab-guided where indicated)

FAQs

Is a “mega dose shot” the same as high-dose IV Vitamin C?
Not usually. Because IM volume per site is limited and common vials are 500 mg/mL, true multi-gram dosing is typically IV. We’ll recommend the safest route for your case.

Do you test G6PD?
For high-dose IV, we may check G6PD to reduce hemolysis risk in susceptible patients. PMC

Can this replace medical treatment?
No. It’s supportive care. If your symptoms suggest another diagnosis, we’ll prioritize evidence-based testing/treatment.

I wear a CGM—anything special?
Yes. Vitamin C can interfere with some CGMs and bedside glucose meters, causing falsely high readings. We’ll give you device-specific guidance.

Will this prevent colds or flu?
Evidence is mixed for prevention in healthy adults. The focus here is hydration/comfort and individualized care—not guaranteed illness prevention.


Booking (English-Friendly)

Same-day options are often available. When booking, mention “Mega Dose Vitamin C (Shot/IV) at VEI Clinic Apgujeong (near Apgujeong Station Exit 5)” and share your goals, kidney/stone history, diabetes devices, meds, and allergies.



Disclaimer

This page is educational and not medical advice. All injections/IVs require in-clinic physician evaluation; not all patients are eligible.