Drug & supplement interaction

Ozone Therapy + Hydroxyurea

Hydroxyurea brand names: Droxia, Hydrea, Siklos, Xromi.

No Known Interaction
Medically reviewed by · Updated July 2026 · Pair last verified Sep 13, 2026
The bottom line No known interaction

We found no known interaction between Ozone Therapy and Hydroxyurea in our sources. Absence of a documented interaction is not the same as proven safety, and does not guarantee one does not exist. Do not start, stop, or change a medication or supplement based on this page; confirm with your pharmacist or doctor first. Additionally, although there is no interaction, the two are separately associated with some of the same side effects, which would make a new symptom harder to attribute to one or the other.

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Interaction report

Ozone Therapy and Hydroxyurea

We checked these two against our interaction database. Here is what we found.

No Known Interaction Found

We did not find a documented interaction between Hydroxyurea and Ozone Therapy in our sources. This does not guarantee that the combination is completely free of risk — research on Ozone Therapy alongside specific medications may be limited.

Worth understanding: our licensed dataset holds no drug-interaction record for Ozone Therapy at all — not against Hydroxyurea, and not against any other medication we track. This verdict therefore rests on the absence of any recorded data, not on research that looked at this combination and found nothing. We cannot rule an interaction out.

Ozone Therapy is a treatment rather than something you take. Tell whoever provides it which medicines you use, and ask your prescriber whether it is appropriate for your health and treatment. Do not stop a prescribed medicine on your own.

Always talk with your pharmacist or doctor before making changes to your medications or supplements, particularly if you take several medications or have an ongoing health condition.

Ozone Therapy safety at a glance

Ozone Therapy overall Use caution Ozone is a toxic gas if inhaled, and most uses lack strong proof of benefit, so professional medical oversight is essential.
Pregnancy Avoid There is not enough safety data, so it is best avoided during pregnancy.
Breastfeeding Avoid There is not enough safety data, so it is best avoided while breastfeeding.

Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

Still wondering about combining Hydroxyurea and Ozone Therapy? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

No Interaction Found — But Data Suggests Ozone Therapy and Hydroxyurea May Share Several of the Same Side Effects

This is not an interaction. Neither one changes how your body handles the other, and nothing here says they react together. What our sources do show is that each has separately been linked to the effects below — so having Ozone Therapy while taking the medicine can make those effects more likely to turn up, and harder to pin on one or the other if they do.

  • Fever / Headache / Nausea / Vomiting reported in 6.2% of FDA reports for Hydroxyurea Additional detail

    Ozone Therapy

    “Inhaled and injected ozone has been associated with blindness and encephalopathy. In a case report, a 36-year-old female presented with Anton syndrome, or ischemic stroke resulting in sudden bilateral blindness, nausea, vomiting and loss of strength after using inhalation ozone therapy for 1 week intended to help with hearing loss and tinnitus from Meniere disease. Reversal of blindness was not reported.”

    Ozone Therapy · Natural Medicines adverse-effect record, reported in cluster headache.

    3 sources cited
    1. 98145. Avci S, Büyükcam F, Demir ÖF, Özkan S. Anton syndrome during oxygen-ozone therapy. Am J Emerg Med. 2015;33(6):856.e1-2. PubMed
    2. 98153. Vaiano AS, Valente C, De Benedetti G, Caramello G. Transient cortical blindness after intradiscal oxygen-ozone therapy. Indian J Ophthalmol. 2016;64(12):944-946. PubMed
    3. 102994. Nociti V, Picarelli C, Losavio FA, et al. Posterior Reversible Encephalopathy Syndrome After Intramuscular Oxygen-Ozone Therapy. Can J Neurol Sci. 2020;47(3):416-418. PubMed

    Hydroxyurea

    Listed in the ADVERSE REACTIONS section of the FDA label for Hydroxyurea, and in voluntary FDA adverse-event reports. Read the label on DailyMed ›

Reported for Ozone Therapy but not commonly for Hydroxyurea: a heart attack, blood clots, memory problems and a stroke or mini-stroke.

Effects for Hydroxyurea come from the ADVERSE REACTIONS section of its FDA label; effects for Ozone Therapy come from the Natural Medicines adverse-effect record, quoted above. Where a percentage is shown, it is the share of 21,027 voluntary FDA FAERS reports for Hydroxyurea that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Wording is matched across sources by our own clinical vocabulary, so treat this as a prompt to pay attention, not a diagnosis.

From our Q&A

Questions About Ozone Therapy or Hydroxyurea

These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Ozone Therapy or Hydroxyurea, not necessarily both, but if one is close to what you were about to ask it will usually go further than a database entry can:

Not quite your question? Ask our pharmacists directly — it is free, there is no account required, and answers usually come back within 24 hours.

Everything else you take

See Every Supplement That Interacts With Hydroxyurea

This page covers Ozone Therapy only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Hydroxyurea page lists 18 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Coffee Charcoal (moderate), European Mandrake (moderate), Glucomannan (moderate) and Guar Gum (moderate).

By severity: 1 major · 7 moderate · 10 minor.

From our pharmacist’s overview on the Hydroxyurea page

“People take hydroxyurea (Droxia, Hydrea, Siklos, Xromi) for serious reasons, most often sickle cell disease or certain blood cancers, and it only works if a steady dose reaches the bloodstream. That is exactly what nearly all 18 supplements listed here can undermine, so this page earns real vigilance rather than a skim.”

Reviewed by 2 · Jul 18, 2026

Open the Hydroxyurea interaction page

How much people look this up

Where Ozone Therapy and Hydroxyurea Sit Against Everything Else

Out of every supplement and medication people look up on HelloPharmacist, here is where these two land this week — and which way each has been moving.

Supplement Ozone Therapy
Steady interest

#957 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Hydroxyurea
Top 5%

#39 of 2,830 medications looked up here in the last 7 days

29 days ago today

Position among everything looked up on this site, not a measure of how commonly either one is used or how important it is. A supplement can climb this list because of a news story. It counts every request to the page, automated ones included, and nothing here identifies anyone.

Where does our data come from?
  • Source: the Natural Medicines (TRC Healthcare) clinical database — the evidence-graded professional reference for herb & supplement interactions.
  • Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Ozone Therapy reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Ozone Therapy and Hydroxyurea records this page draws on were last updated July 10, 2026.
  • What “no known interaction” means: no documented interaction in the sources above — not a guarantee of safety. Supplements are studied far less than prescription drugs, so we say exactly what the evidence supports, and nothing more.
Data structure & sourcing designed and verified by .
Treatment approach

About Ozone Therapy

What is Ozone Therapy?

  • Wound and skin infections
  • Joint and back pain
  • Immune support
  • Dental and gum care
  • Chronic infections
  • General 'detox' and wellness claims

Ozone therapy uses a reactive form of oxygen for a wide range of unproven health claims, and it is not a dietary supplement or herb. High-quality evidence for most uses is limited, and breathing ozone is harmful to the lungs. If you are considering it, talk to a licensed doctor or pharmacist first, since safety and benefit are not well established.

Medical ozone gas (a mixture of oxygen and ozone) · Gas insufflation, ozonated water, ozonated oils, major and minor autohemotherapy (blood treatment), injections

An interaction check asks whether these two react with each other — it does not ask whether Ozone Therapy is a good idea for someone in your situation. Here is what our Ozone Therapy record says about it on its own.

Ozone Therapy: dosing

There is no standardized, proven dose for ozone therapy, and it varies widely between providers and methods. Concentrations, volumes, and treatment schedules are not well established by high-quality research.Because ozone is reactive and potentially harmful, you should never try to make or use it at home. If you are considering ozone therapy, only do so under the supervision of a licensed, experienced healthcare professional, and discuss it with your own doctor or pharmacist first to make sure it is appropriate and safe for you.

From our Ozone Therapy monograph — the full record covers uses, side effects and every documented interaction.

Read the full Ozone Therapy monograph & all interactions
Medication

About Hydroxyurea

What Is Hydroxyurea Used For?

Brand names: Droxia, Hydrea, Siklos, Xromi

Hydroxyurea is used for several serious conditions. Droxia, Siklos, and Xromi are each indicated to reduce the frequency of painful crises and reduce the need for blood transfusions in patients with sickle cell anemia who have recurrent moderate to severe painful crises. Siklos is approved for adults and children 2 years and older; Xromi is approved for children 6 months and older; Droxia is approved for adults.

Hydrea capsules and Hydroxyurea capsules are indicated for resistant chronic myeloid leukemia and for locally advanced squamous cell carcinomas of the head and neck (excluding the lip) when used together with chemoradiation.

Most-Reported Side Effects for Hydroxyurea

From FAERS, the FDA’s public side-effect reporting system (21,027 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Fatigue 1,548 reports
Sickle cell anaemia with crisis 1,486 reports
Diarrhea 1,408 reports
Nausea 1,306 reports
Headache 1,068 reports
See full Hydroxyurea drug information
Keep checking

Other Drugs & Ozone Therapy

Browse every other medication we’ve checked against Ozone Therapy — both the ones with a known interaction and the ones without. Select any drug for the full detail.

0Major
0Moderate
0Minor
2,829No known interaction
2,829 No interaction
No interaction 2,829 drugs checked — show the list

We also checked Ozone Therapy against these medications and found no known interaction in our sources. Open any page to confirm.

Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Ozone Therapy list.

See the full Ozone Therapy interactions page
See every supplement checked against Hydroxyurea, ranked by severity
Evidence & sources

Ozone Therapy References

The 39 references that drive our Ozone Therapy monograph and interaction data, from the evidence-graded Natural Medicines (TRC Healthcare) database. Citations with a link open the study on PubMed or the publisher’s site.

  1. Re L, Mawsouf MN, Menendez S, et al. Ozone therapy: clinical and basic evidence of its therapeutic potential. Arch Med Res 2008;39:17-26. PubMed
  2. Bocci VA. Tropospheric ozone toxicity vs. usefulness of ozone therapy. Arch Med Res 2007;38:265-7. PubMed
  3. Bocci VA. Scientific and medical aspects of ozone therapy. State of the art. Arch Med Res 2006;37:425-35. PubMed
  4. Tafil-Klawe M, Wozniak A, Drewa T, et al. Ozone therapy and the activity of selected lysosomal enzymes in blood serum of patients with lower limb ischaemia associated with obliterative atheromatosis. Med Sci Monit 2002;8(7):CR520-5.
  5. Ragab A, Shreef E, Behiry E, et al. Randomised, double-blinded, placebo-controlled, clinical trial of ozone therapy as treatment of sudden sensorineural hearing loss. J Laryngol Otol 2009;123(1):54-60. PubMed
  6. Garber GE, Cameron DW, Hawley-Foss N, et al. The use of ozone-treated blood in the therapy of HIV infection and immune disease: a pilot study of safety and efficacy. AIDS 1991;5(8):981-4. PubMed
  7. Andreula CF, Simonetti L, De Santis F, et al. Minimally invasive oxygen-ozone therapy for lumbar disk herniation. AJNR Am J Neuroradiol 2003;24(5):996-1000.
  8. Pawlak-Osinska K, Kazmierczak H, Kazmierczak W, Szpoper M. Ozone therapy and pressure-pulse therapy in Meniere's disease. Int Tinnitus J 2004;10(1):54-7.
  9. Avci S, Büyükcam F, Demir ÖF, Özkan S. Anton syndrome during oxygen-ozone therapy. Am J Emerg Med. 2015;33(6):856.e1-2. PubMed
  10. Celakil T, Muric A, Gokcen Roehlig B, Evlioglu G, Keskin H. Effect of high-frequency bio-oxidative ozone therapy for masticatory muscle pain: a double-blind randomised clinical trial. J Oral Rehabil. 2017;44(6):442-451. PubMed
  11. Dogan M, Ozdemir Dogan D, Düger C, et al. Effects of high-frequency bio-oxidative ozone therapy in temporomandibular disorder-related pain. Med Princ Pract. 2014;23(6):507-10. PubMed
  12. León Fernández OS, Viebahn-Haensler R, Cabreja GL, et al. Medical ozone increases methotrexate clinical response and improves cellular redox balance in patients with rheumatoid arthritis. Eur J Pharmacol. 2016;789:313-318. PubMed
  13. Magalhaes FN, Dotta L, Sasse A, Teixera MJ, Fonoff ET. Ozone therapy as a treatment for low back pain secondary to herniated disc: a systematic review and meta-analysis of randomized controlled trials. Pain Physician. 2012;15(2):E115-29. DOI
  14. Sivalingam VP, Panneerselvam E, Raja KV, Gopi G. Does Topical Ozone Therapy Improve Patient Comfort After Surgical Removal of Impacted Mandibular Third Molar? A Randomized Controlled Trial. J Oral Maxillofac Surg. 2017;75(1):51.e1-51.e9. PubMed
  15. Sönmez O, Külahli I, Vural A, Sahin MI, Aydin M. The evaluation of ozone and betahistine in the treatment of tinnitus. Eur Arch Otorhinolaryngol. 2013;270(7):1999-2006. PubMed

Medication overviews come from MedlinePlus (NIH); supplement label data from the NIH Dietary Supplement Label Database. Content is written and reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.

Pharmacist Counseling Corner

Having Ozone Therapy While Taking Hydroxyurea: Common Questions

Is it safe to have Ozone Therapy while taking Hydroxyurea?
We do not list a known interaction between Ozone Therapy and Hydroxyurea. That does not guarantee the combination is risk-free, so confirm with your pharmacist or doctor — especially if you take other medications or have a health condition.
Do Ozone Therapy and Hydroxyurea have any of the same side effects?
Yes — our sources link each of them separately to 4 of the same effects. That is not an interaction: neither changes how your body handles the other. It does mean that if one of those effects turns up, it can be harder to tell which one is behind it. They are listed on this page with the source behind each.
Does Hydroxyurea interact with any supplements?
Yes. Hydroxyurea has documented interactions with 18 supplements in our database — Ozone Therapy is not one of them. The Hydroxyurea interaction page linked on this page lists every one, ranked by severity.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Where next

Keep Exploring

Ozone Therapy monograph Uses, safety profile, and every drug interaction in one place Hydroxyurea drug information The full plain-English guide to this medication Hydroxyurea supplement interactions Every supplement checked against Hydroxyurea, ranked by severity Supplement interaction checker Check any supplement or product against your medications Browse medications A–Z Every drug we’ve checked against herbs & supplements References The 39 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Hydroxyurea and Ozone Therapy?

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This information is for education only and is not a substitute for professional medical advice. Always check with your pharmacist or doctor before starting, stopping, or combining supplements and medications.