Vitamin C Therapy for Pets

Vitamin C therapy is commonly used within integrative veterinary medicine as part of a personalized wellness and supportive care plan. High-dose intravenous Vitamin C allows significantly higher plasma concentrations to be achieved compared to traditional oral supplementation alone. At these elevated levels, Vitamin C may help create an environment that is unfavorable to abnormal cells while supporting healthy tissues and immune function.

Liposomal oral Vitamin C may also be recommended in some cases as part of an ongoing wellness strategy or between intravenous treatments. Because every patient is unique, Dr. Raj carefully evaluates each pet’s condition, medical history, and treatment goals before recommending a customized Vitamin C therapy protocol.

At Phoenix Rising Integrative Veterinary Care, Vitamin C therapy for pets is approached through a compassionate and holistic philosophy that focuses on supporting comfort, vitality, and quality of life while integrating modern veterinary understanding with individualized patient care.

Intravenous (IV) Vitamin C Therapy involves the administration of Vitamin C directly into the bloodstream. This delivery system is very powerful because it allows the plasma concentration of Vitamin C to reach levels high enough to kill cancer cells.

Oral administration of Liposomal Vitamin C is also capable of achieving high enough plasma levels of Vitamin C to kill cancer cells along with IV Vitamin C.

How Does it Work?


Vitamin C at high blood concentrations does not work as an anti-oxidant but instead acts as a pro-oxidant. When given intravenously, Vitamin C in the blood has been shown to generate the production of hydrogen peroxide that directly kills cancer cells in the early stages of cancer.

Is it Safe?

There are no significant adverse effects associated with high doses of intravenous vitamin C when properly administered, whether given as a sole therapy or in combination with chemotherapy or radiation. Some animals can feel nauseous and may vomit during treatment which is a common side effect of an infusion going too fast, our technicians will monitor the patient until an appropriate rate is achieved. Increased water intake is also very common, there is no need to be alarmed if your pet wants to drink more water after treatment.