IV Ozone Therapy: How It Works, What It Treats, and What to Expect

Your blood gets drawn into a sterile bag, mixed with medical-grade ozone gas, and returned to your vein. The whole process takes about 30 to 45 minutes. That's IV ozone therapy in its simplest form. But what happens inside your body during and after that session is anything but simple.

IV ozone therapy has been used in clinical settings since the early 1900s, mostly in Europe. Over the last two decades, it's gained traction in the United States as more providers look beyond conventional treatment options for patients dealing with chronic infections, autoimmune conditions, and persistent fatigue. At Med Matrix in South Portland, Maine, we use IV ozone therapy as one tool in a larger functional medicine approach, always paired with advanced lab testing and a personalized treatment plan.

This article covers how IV ozone therapy works, what conditions it may help with, what a session looks like, and what to expect in terms of side effects and safety.

How IV Ozone Therapy Works

Ozone is a gas made up of three oxygen atoms (O3) instead of the two atoms (O2) we normally breathe. That extra oxygen atom makes it highly reactive, which is why it has to be handled carefully in a clinical setting.

The most common method is called Major Autohemotherapy (MAH). A small amount of your blood (usually 100 to 250 mL) is drawn into an IV bag or syringe, mixed with a precise concentration of ozone gas, and then infused back into your bloodstream. The ozone reacts with your blood almost immediately, creating what are called ozonides and lipid peroxidation products. These byproducts are what trigger the therapeutic effects.

What those byproducts do inside your body:

• Stimulate your white blood cells to produce more cytokines (immune signaling molecules)
• Improve how efficiently your red blood cells deliver oxygen to tissues
• Activate your body's own antioxidant defense systems, including glutathione and superoxide dismutase
• Help modulate an overactive or underactive immune response

The key concept is called hormesis. A small, controlled oxidative stress triggers your body to upregulate its own protective mechanisms. Think of it like exercise for your cells. The stress is brief and controlled, but the adaptive response lasts much longer.

Conditions Where IV Ozone Therapy May Help

Ozone therapy is not a cure-all. We want to be straightforward about that. But for certain conditions, particularly those involving chronic inflammation, immune dysfunction, or poor oxygen delivery, it can be a meaningful part of a treatment plan.

Chronic and Persistent Infections

Patients dealing with Lyme disease, Epstein-Barr virus, and other chronic infections often have immune systems that are stuck. They're fighting but not winning. Ozone therapy can help reset that immune response. The ozonides produced during treatment have direct antimicrobial properties against bacteria, viruses, and fungi. At the same time, they stimulate your immune cells to function more effectively.

For patients with lingering symptoms after a viral infection, including long COVID, ozone therapy is one of several tools we use alongside immune-supporting IV protocols and targeted supplementation.

Autoimmune Conditions

This is where ozone therapy's immune-modulating properties become especially relevant. In autoimmune conditions like Hashimoto's thyroiditis, rheumatoid arthritis, or lupus, the immune system is overreacting and attacking healthy tissue. Ozone therapy doesn't simply "boost" immunity. It helps recalibrate it. The goal is to bring an overactive immune response back toward balance while still keeping your defenses functional.

We typically combine ozone therapy with root-cause investigation into what's driving the autoimmune process, whether that's gut permeability, hidden infections, toxic burden, or hormonal imbalances.

Fatigue and Low Energy

Patients who come in saying "I wake up and I still feel tired" or "by 2pm I'm ready to take a nap" often have mitochondrial dysfunction, meaning their cells aren't producing energy efficiently. By improving oxygen delivery and stimulating mitochondrial activity, ozone therapy can help restore energy production at the cellular level.

That said, fatigue always has a root cause. Ozone therapy addresses the cellular energy piece, but we also need to investigate thyroid function, adrenal health, nutrient status, and other contributors to chronic fatigue.

Cardiovascular Support

Ozone therapy improves blood flow by making red blood cells more flexible and less likely to clump together. It also helps improve the function of the endothelium (the lining of your blood vessels). For patients with cardiovascular concerns, this can mean better circulation, reduced inflammation in the vessel walls, and improved oxygen delivery to the heart and other organs.

Inflammation and Pain

Chronic inflammation drives a long list of health problems, from joint pain and arthritis to brain fog and metabolic dysfunction. Ozone therapy's ability to modulate inflammatory pathways (specifically by influencing NF-kB and Nrf2 signaling) makes it useful as part of a broader anti-inflammatory treatment strategy.

What a Treatment Session Looks Like

If you've never had IV ozone therapy before, here's what to expect at our clinic.

Before your first session, you'll have a consultation with one of our providers. We review your health history, current symptoms, medications, and lab work. Ozone therapy isn't appropriate for everyone (more on contraindications below), so this step matters. We run a panel of 80+ biomarkers as part of our standard workup, which gives us a detailed picture of where your body stands before we start any treatment.

During the session, you'll sit in a comfortable chair while a small amount of blood is drawn, mixed with ozone in a closed sterile system, and returned to your vein. The entire process takes roughly 30 to 45 minutes. Most patients read, scroll their phone, or just relax. There's no significant discomfort beyond the initial needle stick.

After the session, you can go right back to your normal routine. There's no downtime. Some patients feel a mild energy boost that same day. Others notice gradual improvements over a series of sessions. We typically recommend starting with a series of 6 to 10 treatments (once or twice per week) and then reassessing based on your response and lab markers.

Safety, Side Effects, and Who Should Avoid It

IV ozone therapy has a strong safety profile when administered by trained providers in a clinical setting with proper equipment. That "when" is important. Ozone gas should never be inhaled directly, and the concentration and volume must be precisely calibrated for each patient.

Common side effects (mild and temporary):

• Slight warmth or flushing during the infusion
• Mild fatigue or a "detox" feeling for a few hours afterward (this is your body processing the immune activation)
• Minor bruising or tenderness at the IV site
• Occasional brief headache

Who should not receive IV ozone therapy:

• Patients with G6PD deficiency (a genetic enzyme disorder that makes red blood cells vulnerable to oxidative damage)
• Pregnant women
• Patients with uncontrolled hyperthyroidism
• Anyone currently on high-dose blood thinners without provider coordination

This is why the initial consultation and lab work are non-negotiable. We screen for these contraindications before recommending ozone therapy to any patient.

How Ozone Therapy Fits into a Functional Medicine Plan

We don't use ozone therapy in isolation. That's not how functional medicine works. Every patient who receives ozone at Med Matrix is also getting a full workup that includes bloodwork, body composition analysis, health history review, and a 60-minute provider consultation to build a personalized plan.

Ozone therapy often works alongside:

• IV nutrient therapy (vitamin C, glutathione, NAD+, mineral blends)
• Peptide therapy for tissue repair and immune support
• Detoxification protocols for patients with heavy metal or mold exposure
• Hormone balancing when labs show deficiencies contributing to fatigue or immune dysfunction

The value of ozone therapy increases when it's part of a coordinated plan, not used as a standalone fix. Our providers at Med Matrix look at the full picture and determine where ozone fits (if it fits at all) for each patient's specific situation.

Ozone Therapy vs. Other IV Treatments

Patients sometimes ask how ozone therapy compares to other IV treatments. They serve different purposes, and in many cases, they complement each other.

IV Nutrient Therapy delivers vitamins, minerals, and amino acids directly into your bloodstream. It's designed to replenish what's depleted. IV nutrient drips are excellent for patients who are nutrient-deficient, recovering from illness, or dealing with absorption issues. Ozone therapy, by contrast, isn't delivering nutrients. It's triggering an immune and metabolic response.

Hyperbaric Oxygen Therapy (HBOT) involves breathing pure oxygen in a pressurized chamber to increase tissue oxygen levels. Both HBOT and ozone therapy improve oxygenation, but through different mechanisms. HBOT saturates your tissues with oxygen directly. Ozone therapy improves how your red blood cells release and deliver oxygen they're already carrying. Some patients benefit from both.

UV Blood Irradiation (UVBI) is another therapy we offer at Med Matrix. It exposes a small amount of blood to ultraviolet light before returning it to the body. Like ozone, it has immune-modulating properties. The two are sometimes used together in the same session for patients with chronic infections. You can read more about UVBI therapy on our blog.

Frequently Asked Questions

How many IV ozone therapy sessions will I need?

It depends on your condition and how your body responds. Most patients start with a series of 6 to 10 sessions, spaced once or twice per week. After the initial series, we reassess your symptoms and lab markers to determine whether maintenance sessions (monthly or as needed) would be helpful. Patients with acute infections may need more frequent sessions initially, while those using ozone for general immune support may need fewer.

Does IV ozone therapy hurt?

The only discomfort is the initial IV needle insertion, which feels like a standard blood draw. Once the IV is placed, the process itself is painless. Some patients feel a mild warmth during the infusion. The session is comfortable enough that most people read or relax during the 30 to 45 minutes it takes.

Is IV ozone therapy covered by insurance?

Most insurance plans do not cover IV ozone therapy. At Med Matrix, we accept HSA and FSA accounts, CareCredit, and all major credit cards. During your consultation, we'll discuss the full cost of your recommended treatment plan so there are no surprises.

Can IV ozone therapy be combined with other treatments?

Yes, and it often is. We frequently pair ozone therapy with IV nutrient drips, UVBI, peptide therapy, and other protocols depending on the patient's needs. Our providers coordinate all treatments as part of a single plan so nothing conflicts and everything works together toward the same goal.

Getting Started

If you're dealing with a chronic condition that hasn't responded well to conventional treatment, or you're looking for ways to support your immune system and reduce inflammation, IV ozone therapy may be worth exploring. The first step is a conversation with one of our providers to see if it's a good fit for your situation.

Med Matrix is located in South Portland, Maine, and we serve patients from across Maine and New Hampshire. We have 7 providers on staff, each trained in functional medicine, and we've worked with over 3,000 patients since opening in 2023.

Schedule your free discovery call to talk with our patient coordinator about your symptoms, your goals, and whether IV ozone therapy belongs in your treatment plan.