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EBOO therapy is not advised for people with G6PD deficiency, bleeding or clotting disorders, a history of blood clots, active bleeding, pregnancy or breastfeeding, severe anemia, or a very recent heart attack or stroke. Others, including people with uncontrolled hyperthyroidism, low platelets, unstable heart disease, or those on certain medications, may need medical clearance and lab work first. The single most important screening test is for G6PD deficiency, because ozone can trigger red blood cell breakdown in people who lack that enzyme.
If you are still learning what EBOO therapy is, it is a blood-based ozone therapy, which is why candidacy matters so much. EBOO therapy is not FDA-approved, and this is educational, not medical advice. The list below is not exhaustive, and final candidacy is always a clinical decision made at a consultation. Being told “no” or “not yet” is a sign of a careful clinic, not a red flag.
The clearest way to understand EBOO therapy contraindications is to split them into two groups: conditions that rule out EBOO completely, and conditions that require medical clearance before it can be considered. Here is that split.
These are the conditions where a responsible clinic will not perform EBOO because the risk is too high, no matter how carefully the session is run.
This is the most important one. G6PD is a genetic enzyme deficiency, and without that enzyme, your red blood cells cannot handle the oxidative stress of ozone. The result can be hemolysis, where red blood cells break apart. This is why G6PD screening is essential before any ozone therapy, and why a careful clinic tests for it without exception.
Because EBOO uses a small amount of anticoagulant to move blood smoothly through the circuit, anyone with active bleeding, a bleeding disorder, or conditions like active ulcers is not a candidate. The therapy and the bleeding risk work against each other.
A history of blood clots or a clotting disorder is a clear reason not to proceed. This is a firm exclusion at our clinic.
EBOO has not been adequately studied for fetal safety, so it is not done during pregnancy, especially the first trimester, and we wait until after breastfeeding to begin.
Because EBOO processes your blood, a very low red blood cell count makes the therapy inappropriate. Your red cells carry oxygen, and any pre-existing weakness is a reason not to proceed.
A recent cardiovascular event, such as a heart attack or major stroke within roughly the past 30 to 60 days, is a reason to wait. The procedure’s circulatory demands are not appropriate during that recovery window.
These conditions don’t automatically rule out EBOO, but they require medical review and sometimes additional testing or clearance before anyone proceeds.
One timing detail is worth knowing before you book. Taking a high-dose IV antioxidant such as vitamin C or glutathione on the same day as EBOO is usually avoided. EBOO works partly by creating a brief, controlled oxidative signal, and flooding your system with strong antioxidants at the same time can blunt the very effect you are paying for. It is not an absolute contraindication, but it is a real timing conflict, so these treatments are usually scheduled on separate days.
Every contraindication above is caught the same way, through proper screening before your first session. The list is only useful if a clinic actually checks against it.
A careful clinic reviews your full medical history, checks every medication and supplement you take, orders lab testing where needed, including G6PD status, and then makes a real clinical decision about whether EBOO is appropriate for you. The most important part of that process is a provider who is willing to say no. If a clinic offers to book you for EBOO without reviewing your history or testing for G6PD, that is the real warning sign, not any single item on the list. This same screening keeps EBOO side effects mild for people cleared to proceed.
Contraindications are one piece of the puzzle when deciding whether EBOO is right for you. They also help you understand whether EBOO therapy is safe in general, how many sessions you need if you proceed, and what EBOO therapy costs so there are no surprises. Once you are cleared as a candidate, a little planning goes a long way, so it is worth reading how to prepare for your session before your first visit.
Patients sometimes worry that being turned down means something is wrong with them. It does not. A good contraindication list protects you, and telling someone, “this is not right for you, or not right now,” is one of the most important things I do. In 28 years, I have never regretted being cautious about who gets a blood-based therapy. Be wary of clinics that treat everyone who walks in.
EBOO is not advised for people with G6PD deficiency, bleeding or clotting disorders, a history of blood clots, active bleeding, pregnancy or breastfeeding, severe anemia, or a very recent heart attack or stroke. Others may need medical clearance first.
Absolute EBOO therapy contraindications, where EBOO is not performed, include G6PD deficiency, active bleeding or a bleeding disorder, a history of blood clots, pregnancy and breastfeeding, severe anemia, and a very recent heart attack or stroke.
People with G6PD deficiency lack an enzyme their red blood cells need to handle oxidative stress. Ozone in EBOO can cause those cells to break down (hemolysis), which is why G6PD screening is essential before treatment.
No. EBOO is not done during pregnancy, especially the first trimester, because it has not been adequately studied for fetal safety. Providers also generally wait until after breastfeeding to begin.
It depends. ACE inhibitors in particular can cause a drop in blood pressure during EBOO, so this needs medical review and careful timing rather than an automatic no. Tell your provider about every medication you take.
Usually not on the same day. High-dose IV antioxidants can blunt the oxidative signal EBOO relies on, so clinics typically separate them. This is a timing consideration, not a safety contraindication.
At Purefico in Cornelius, NC, near Charlotte, we screen every patient before EBOO. We do not treat anyone with an absolute contraindication, such as G6PD deficiency or a history of blood clots, and we clear relative contraindications first.
Melissa Lynch, NP, is a nurse practitioner with 28 years of clinical experience and the founder of Purefico MedSpa & Therapy, with locations in Cornelius and Archdale, North Carolina.
