IV Ozone Therapy: How It Works, Sessions and Safety

What IV ozone therapy is

Medical ozone is a reactive form of oxygen made by a generator from pure medical oxygen. In standard IV ozone, the gas is mixed with a measured amount of your own blood in a sterile container, where it reacts within minutes, and the treated blood then returns through the vein. This is the most widely used way of giving ozone systemically. For the bigger picture, including ozone injections and other routes, see what is ozone therapy?

IV ozone and EBOO

EBOO (extracorporeal blood oxygenation and ozonation) is a related treatment built on the same idea. The main difference is volume: EBOO treats more blood than standard IV ozone.

	IV ozone (major autohemotherapy)	EBOO
Blood treated per session	About 100 to 300 mL in published protocols	A larger volume than standard IV ozone
How blood is treated	Mixed with ozone in a sterile bag or bottle, then returned	Circulated outside the body and exposed to ozone, then returned
Equipment	IV line, sterile blood container and ozone generator	An extracorporeal circuit outside the body
How common	The most widely used systemic method	Less widely used

How IV ozone is thought to work

When ozone meets blood, it reacts almost at once with antioxidants and fats in the plasma, producing short-lived signals such as hydrogen peroxide and lipid oxidation products. The theory is that these signals act as a small, controlled stress that prompts cells to make more of their own antioxidant enzymes. Laboratory work on human blood suggests a narrow working range: very low doses are neutralized before they do anything, while high doses start to exhaust the blood's antioxidant capacity. Most of this comes from laboratory and animal research.

Before your first session

Screening comes first. A consultation covers your history, goals, current medications and any heart, thyroid or blood conditions. Lab work includes a G6PD test, because G6PD is the enzyme red blood cells rely on to recycle their antioxidant defenses, and safety reviews treat G6PD screening as mandatory before IV ozone.

Published expert guidance lists these contraindications:

G6PD deficiency (favism)
Pregnancy
Hyperthyroidism
Sickle cell anemia
Known allergy to ozone
Treatment with certain anticoagulant (blood-thinning) drugs
Severe heart rhythm problems, hypertensive crisis and other unstable cardiovascular disease
Hemochromatosis, or current iron or copper therapy

What happens during an IV ozone session

You sit or lie back comfortably, and an IV line is placed in a vein in your arm.
A measured amount of blood flows into a sterile container that holds an anticoagulant so it does not clot.
Medical ozone at a set concentration is added, and the blood is gently mixed for a few minutes.
The blood returns slowly through the same line, more slowly at the first session.
You are monitored throughout, and the line is removed at the end.

The concentration is set by the physician, starts low and increases gradually. Including IV placement and monitoring, a visit in my practice takes about an hour, and most people go back to their day afterward.

How many sessions you need

Researchers who study the blood effects argue that some changes only build up over repeated sessions, as new red blood cells form. In practice, the right number depends on why you are having it. I set a defined series, then review how you are responding before deciding whether to continue.

Side effects and risks

Most reported side effects are mild:

Bruising or irritation at the IV site
Fainting or lightheadedness during the needle stick
Rash or other allergic reactions
Brief numbness of the lips or tongue from the anticoagulant
Deep tiredness after a session

Serious complications are rare but documented. A 2026 scoping review found case reports of red blood cell breakdown and kidney failure at concentrations above 60 µg/mL, high potassium in people with complex kidney and heart disease, heart attacks, gas embolism to the brain in people with a patent foramen ovale (a small hole between the heart's upper chambers), reactions to reinfusing too fast, allergic reactions to equipment, and infections after breaks in sterile technique. The authors could not put a reliable number on how often this happens, because no prospective registries exist. They concluded that serious harm does not appear frequent when a standard protocol is followed, with G6PD screening, recommended concentrations, slow reinfusion and strict sterile technique.

Ozone must never be inhaled. Breathing it damages the lungs, which is one reason home ozone treatment is unsafe.

What the research shows

The honest answer is that the evidence for IV ozone is limited. Laboratory studies show measurable effects on blood antioxidants and oxygen delivery, but ozone therapy has not been tested in large clinical trials. Human studies tend to be small, use different doses and schedules, and measure different outcomes. A 2026 review of IV ozone in fibromyalgia found reported improvements in pain, sleep and fatigue, but concluded that the evidence is limited by inconsistent methods and that the treatment should be considered experimental for now.

Many clinic pages list long menus of conditions IV ozone supposedly treats. Be wary of any provider who promises a cure or guaranteed result.

How IV ozone is regulated

IV ozone is not FDA-approved for any condition. A federal regulation, 21 CFR 801.415, describes ozone as a toxic gas with no known useful medical application in specific, adjunctive or preventive therapy. Physicians who offer IV ozone do so as an unapproved therapy, so the provider's training, screening and equipment matter a great deal.

Cost and insurance

Insurance does not cover IV ozone. Cost depends on the type of treatment (standard IV ozone or EBOO), the number of sessions in the plan, screening labs including G6PD, and the consultation and follow-up visits. Ask for a written quote for the whole plan before the first session.

IV ozone in Miami

I offer IV ozone in Miami as one part of an integrative plan, with a consultation and screening, including G6PD testing, before the first session, and monitoring during every session. I tell patients plainly where the evidence is thin. Read what is ozone therapy? for the full overview, see ozone therapy in Miami, or book a consultation.

Frequently asked questions

What is IV ozone therapy?

IV ozone therapy, also called major autohemotherapy, draws a measured amount of your blood into a sterile container, mixes it with a set concentration of medical ozone for a few minutes, and returns it slowly through the same vein. It is not FDA-approved for any condition, and evidence for most uses is limited.

How long does an IV ozone session take?

With IV placement, the blood draw, mixing, slow return and monitoring, a visit in my practice takes about an hour.

How many IV ozone sessions do you need?

It depends on the goal. A good plan sets a defined series, reviewed with your physician before continuing.

Does IV ozone therapy hurt?

It feels much like having blood drawn and an IV placed. Most people feel a needle stick and little else, though some feel lightheaded or faint during the needle stick, and bruising at the IV site is possible.

What are the side effects of IV ozone therapy?

Reported side effects include bruising at the IV site, fainting during the needle stick, rash or other allergic reactions, brief lip or tongue numbness from the anticoagulant, and tiredness after a session. Serious problems such as red blood cell breakdown, gas embolism and infection are rare and have been linked to high doses, missed screening or broken sterile technique.

Who should not get IV ozone therapy?

Published guidance lists G6PD deficiency, pregnancy, hyperthyroidism, sickle cell anemia, ozone allergy, certain anticoagulant drugs, unstable heart disease and hemochromatosis as contraindications. A consultation, medication review and G6PD test should come before the first session.

What is the difference between IV ozone and EBOO?

Both treat blood with ozone outside the body and return it. Standard IV ozone treats a measured bag of blood, while EBOO uses a dedicated circuit to treat a larger volume and is less widely used.

Does insurance cover IV ozone therapy?

No. Insurance does not cover ozone therapy, so the clinic should quote the full cost of the plan, including screening labs, before your first session.