The Science Behind High-Dose IV Vitamin C and Cancer Cell Sensitivity in Dunedin
- Dunedin Medical Aesthetic Clinic
- Jun 7
- 3 min read
The Science Behind High-Dose IV Vitamin C and Cancer Cell Sensitivity
Exploring the Cellular Mechanisms and Clinical Evidence in Dunedin
At Dunedin Medical & Aesthetics Clinic, we offer evidence-based high-dose IV Vitamin C cancer sensitivity support in Dunedin for patients seeking integrative care alongside standard oncology treatment.

What Is High-Dose IV Vitamin C?
At Dunedin Medical & Aesthetics Clinic, we offer personalised IV Vitamin C cancer support in Dunedin, grounded in current clinical research and mechanistic understanding. High-dose intravenous vitamin C (IVC) is different from oral supplementation. At pharmacological doses, it acts not just as an antioxidant—but as a pro-oxidant in tumour environments.
This article explores how that works, what the evidence says, and why it may matter for people undergoing cancer treatment.
How High-Dose IV Vitamin C Affects Cancer Cell Sensitivity in Dunedin
Unlike oral vitamin C, intravenous administration reaches plasma concentrations high enough to generate hydrogen peroxide (H₂O₂) in the tumour microenvironment. Cancer cells—due to lower levels of catalase—struggle to detoxify this oxidative stress, making them more vulnerable than healthy cells.
Key Mechanisms Behind the Effects
Pro-oxidant effect: Creates reactive oxygen species that target cancer cells
Epigenetic activity: Activates TET enzymes, promoting DNA demethylation (Zhao et al., 2018)
Cancer stem cell sensitivity: May disrupt ATP generation in tumour-initiating cells (Satheesh et al., 2020)
These pathways are what distinguish IV Vitamin C from general supplementation.
Clinical Studies at a Glance
Ma et al. (2014): Enhanced chemo sensitivity in ovarian cancer, fewer side effects
Zhao et al. (2018): Prolonged survival in acute myeloid leukemia patients
Carr et al. (2014): Better energy and wellbeing during active treatment
These are just a few of many growing trials supporting its integrative use.
Who Might Benefit?
Patients in Dunedin exploring high-dose IV Vitamin C for cancer sensitivity often seek support for:
Reducing fatigue and oxidative stress
Enhancing chemo or radiation outcomes
Targeting inflammation and immune dysfunction
Improving energy and quality of life
Eligibility and Clinical Screening
IV Vitamin C is a prescription-only treatment. Every protocol is tailored based on:
Cancer type and stage
Kidney and liver function
G6PD enzyme level
Medication and supplement history
You must inform us of any changes to your health, prescriptions, or natural therapies. Treatment may be paused or declined if not clinically appropriate.
Ready to Learn More?
If you're considering IV Vitamin C as part of your cancer care plan, we encourage early contact. Appointments are limited due to clinical screening and infusion time.
Contact Dr Lee
📧 Email: drlee@dunedinmedical.co.nz
🌐 Website: www.dunedinmedical.co.nz
References – High-Dose IV Vitamin C and Cancer
Chen Q et al. (2005). Pharmacologic ascorbic acid concentrations selectively kill cancer cells.🔗 PMID: 16157892
Ma Y et al. (2014). High-dose parenteral ascorbate enhanced chemosensitivity of ovarian cancer.🔗 PMID: 24463248
Zhao H et al. (2018). Vitamin C with decitabine improves survival in AML.🔗 PMID: 29275122
Carr AC et al. (2014). Intravenous vitamin C and quality of life in cancer patients.🔗 PMID: 25399891
Satheesh NJ et al. (2020). Combination therapy with vitamin C targets cancer stem cells.🔗 PMID: 31936337
Shenoy N et al. (2018). Ascorbic acid’s anti-cancer mechanisms and pharmacokinetics.🔗 PMID: 30146367
Nauman G et al. (2018). Systematic review of intravenous ascorbate in cancer clinical trials.🔗 PMID: 29949839
Mikirova N et al. (2013). Intravenous ascorbic acid protocol for cancer patients.🔗 PMID: 28462280
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