Oil of Oregano: uses, dosing, side effects & brands
Oil of Oregano is a medicine sold in the U.S. under one brand. Below: what the FDA label says, every product that contains it, what the pills look like, and its recall record.
Key facts
- Sold as
- Oregano Oil
- Generic available?
- Not in our catalog
Every oil of oregano product we track (1)
Same active ingredient — different manufacturer, form, price and FDA recall record. That last one is what our independent score measures.
Only one: Oregano Oil.
What people report to the FDA about oil of oregano
The FDA Adverse Event Reporting System (FAERS) collects reports from patients and clinicians. It holds 120 reports naming oil of oregano, and the FDA flagged 53% of those reports as serious. The effects reported most often — leaving out reports about overdose, misuse or the condition being treated, which dominate the raw list for common medicines:
- fatigue17 reports
- arthralgia9 reports
- dizziness8 reports
- insomnia8 reports
- nausea8 reports
- malaise7 reports
- rash7 reports
- abdominal discomfort6 reports
Read these as a signal, not a rate. A report does not mean oil of oregano caused the effect — anyone can file one, and many describe people taking several medicines for several conditions. Crucially there is no denominator: FAERS does not record how many people took the drug, so these counts cannot be turned into “X% of patients” — a bigger number often just means a more widely used or more talked-about drug. Duplicates exist, and publicity drives reporting. For what is actually established, read the FDA label section above.
Source: openFDA drug/event (FAERS), retrieved July 25, 2026.
Related calculators
Frequently asked questions
What is Oregano Oil?
Oregano Oil (Oil of Oregano) is a dietary supplement.
Can you take oil of oregano with other medicines?
It depends on the medicine. We check it against the FDA labels rather than guessing: our interaction checker searches each drug's own label for the other and quotes what it says, naming the section it came from. Run oil of oregano against whatever else you take — and remember that a label not naming a drug is not the same as that combination being safe.
Is there a generic oil of oregano?
We do not currently list a generic-labelled oil of oregano product. That does not always mean none exists — it means none appears under a generic name in the FDA data we track. Ask your pharmacist.
Cite this page
- APA
- pharmaranks. (2026, July 24). Oil of Oregano: uses, dosing, side effects & brands. https://pharmaranks.com/drugs/oil-of-oregano
- MLA
- “Oil of Oregano: uses, dosing, side effects & brands.” pharmaranks, 24 July 2026, https://pharmaranks.com/drugs/oil-of-oregano.
We summarise public FDA and NIH sources — for a clinical claim, cite the primary source we link to as well.
Sources: FDA openFDA drug label, National Drug Code Directory, and Enforcement (recall) database. This page reproduces public FDA data and is not medical advice. Dosing is set by your prescriber.
Read the full FDA label for oil of oregano on DailyMed (NIH) ↗.