Intravenous Vitamin C Therapy

We have 15 years of experience in high-dose intravenous Vitamin C treatment in Barcelona. Intravenous Vitamin C is used as a supportive treatment for cancer and other chronic pathologies due to its powerful antioxidant, anti-inflammatory, and immune system-boosting action.

All diseases, whether acute or chronic, cause an increase in cellular oxidative stress. Therefore, preventing a sustained, non-physiological increase in oxidative stress must be one of the goals of any therapeutic protocol. All toxins can be considered pro-oxidants, as they produce toxicity in the body through an increase in oxidative stress. Intravenous Vitamin C is used in cancer treatment to palliate the side effects of chemotherapy.

Watch the video about Intravenous Vitamin C here.

Vitamin C has a powerful antioxidant action. Furthermore, it can be administered in high doses because it is water-soluble, and its excess is easily eliminated by the kidneys.

Benefits of Intravenous Vitamin C

Improves chemotherapy side effects in cancer patients

The use of high-dose intravenous Vitamin C helps patients better tolerate the side effects of chemotherapy and improves their quality of life by stimulating immunity and increasing the patient's vitality.

Strengthens the immune system

Vitamin C is necessary to repair damaged tissues, and white blood cells need it to fight infections. When Vitamin C is scarce, lymphocytes are able to retain enough Vitamin C to leave the rest of the body's tissues with nothing. Vitamin C is a powerful immune system stimulator, and intravenous Vitamin C is used in cancer treatment to alleviate the immunosuppression caused by chemotherapy.

Decreases fatigue and increases vitality

The adrenal glands contain more Vitamin C than any other tissue in the body. There, it is used to synthesize adrenaline, noradrenaline, and various steroid hormones. Therefore, during periods of stress, the need for Vitamin C increases.

Decreases muscle and joint pain

Vitamin C has an important anti-inflammatory function that helps the joints. Additionally, it improves muscle function and reduces muscle spasms thanks to its effect on boosting collagen synthesis.

Benefits the skin and hair

Vitamin C plays a role in the synthesis of collagen, which is an essential component of the skin, bones, ligaments, and tendons. Collagen is also part of the walls of blood vessels, gums, scalp, and corneas, as well as the connective tissue that surrounds muscles and organs.

Powerful antioxidant action

Being administered intravenously ensures that all the body's cells receive Vitamin C and eliminate free radicals.

Protects mucous membranes

It helps protect mucous membranes by improving the local immune system and enhancing collagen synthesis, which is fundamental to the structure of mucous membranes.

Detoxifies heavy metals

It helps detoxify the body from metals such as mercury, lead, or cadmium.

Applications of Intravenous Vitamin C in Different Pathologies

Rheumatoid Arthritis

Vitamin C reduces pain and inflammation in patients with rheumatoid arthritis.

Cataracts

The lens of the eye also needs a large amount of Vitamin C to remain fluid and transparent. In cases of cataracts, the amount of Vitamin C present is low, whereas high doses of Vitamin C help prevent and treat cataracts.

Neurodegenerative Processes

The brain is also rich in Vitamin C, but over time its concentration decreases. Its function in the brain consists of protecting neurons from degenerative processes.

Allergies

Vitamin C destroys histamine; therefore, it is very useful in the treatment of allergies.

Infertility

It improves sperm quality (sperm morphology and motility) and increases the sperm count, making it useful in the treatment of male infertility.

Intravenous Vitamin C in Cancer Treatment

High-dose intravenous Vitamin C is used in complementary cancer treatment to improve the immune system of patients undergoing chemotherapy.

It is important to emphasize that intravenous Vitamin C treatment must be interrupted 48 hours before chemotherapy and can be readministered 48 hours after it has finished.

Scientific studies on the beneficial effects of intravenous Vitamin C in the treatment of diseases

Qu J, Yao M et al. (2025) Overall and Progression-Free Survival of Patients With Malignant Neoplasm Following Intravenous Vitamin C: A Systematic Review and Meta-Analysis. Int J Vitam Nutr Res. 2025 Jul 1;95(3):37372. doi: 10.31083/IJVNR37372. PMID: 40613397. Enlace estudio
Farasati Far B et al (2023). The interplay between vitamin C and thyroid. Endocrinol Diabetes Metab. 2023 Jul;6(4):e432. doi: 10.1002/edm2.432. Epub 2023 May 29. PMID: 37246589; PMCID: PMC10335618. Enlace estudio
Gomathi A, Chenthamarai G et al (2022). Effects of Vitamin C and Vitamin E in rheumatoid arthritis - A randomized, open label, and comparative study in a tertiary care hospital. National Journal of Physiology, Pharmacy and Pharmacology 2022 | Vol 12 | Issue 09. DOI: 10.5455/njppp.2022.12.08383202207082022 Enlace estudio
Vollbracht C, Kraft K. (2022).Oxidative Stress and Hyper-Inflammation as Major Drivers of Severe COVID-19 and Long COVID: Implications for the Benefit of High-Dose Intravenous Vitamin C. Front Pharmacol. 2022 Apr 29;13:899198. doi: 10.3389/fphar.2022.899198. PMID: 35571085; PMCID: PMC9100929. Enlace estudio
Vollbracht C, Raithel M, Krick B, Kraft K, Hagel AF. (2018) Intravenous vitamin C in the treatment of allergies: an interim subgroup analysis of a long-term observational study. J Int Med Res. 2018 Sep;46(9):3640-3655. doi: 10.1177/0300060518777044. Epub 2018 Jun 27. PMID: 29950123; PMCID: PMC6136002. Enlace estudio
Mikirova N, Hunninghake R.(2014) Effect of high dose vitamin C on Epstein-Barr viral infection. Med Sci Monit. 2014 May 3;20:725-32. doi: 10.12659/MSM.890423. PMID: 24793092; PMCID: PMC4015650. Enlace estudio