What happens if you mix ibuprofen with an MAOI?
There’s no well-known, direct “symptom mixing” interaction between ibuprofen (an NSAID pain reliever) and an MAOI (a monoamine oxidase inhibitor) that reliably causes a specific combined symptom pattern in every case. The bigger concern with MAOIs is usually interactions with other drugs that raise monoamine levels, or with certain foods.
That said, combining any MAOI with other medicines can still lead to side effects or complications, and ibuprofen can add risks on its own—especially around the stomach, kidneys, and bleeding.
Can ibuprofen worsen common MAOI side effects (and make them seem “mixed”)?
Ibuprofen may contribute to symptoms that overlap with what people sometimes report on MAOIs, such as:
- Stomach irritation, heartburn, nausea
- Dizziness or lightheadedness (in some people)
- Headache
Because MAOIs can also cause nausea, dizziness, and headaches, ibuprofen can make it harder to tell which drug is causing what.
What are the main dangers of ibuprofen (even without an MAOI-specific interaction)?
Ibuprofen’s most important risks include:
- Stomach bleeding or ulcers (especially at higher doses, with alcohol, with age, or with a history of ulcers/GERD)
- Kidney stress or kidney injury, particularly in dehydration or with other medicines that affect kidney function
- Increased bleeding risk (especially if combined with other blood-thinning medicines)
If you’re on an MAOI, clinicians often emphasize avoiding additional meds that raise bleeding risk or irritate the GI tract, because side effects can become more serious and harder to manage.
Are there MAOI combinations that are more dangerous than ibuprofen?
Yes. MAOIs are most dangerous with certain drug classes and substances. People are commonly warned to avoid:
- Other antidepressants and serotonergic agents (risk of serotonin syndrome)
- Certain decongestants/stimulants (can raise blood pressure)
- Opioids that can interact (some can increase toxicity depending on the specific agent)
- Foods high in tyramine (risk of severe hypertensive crisis, depending on the MAOI)
Ibuprofen is not typically in the same “high risk for tyramine/serotonin” category as those agents.
What symptoms should you treat as urgent?
Get urgent medical help (or call local emergency services) if you have any of the following after taking ibuprofen while on an MAOI:
- Signs of GI bleeding: black/tarry stools, vomiting blood, severe stomach pain
- Severe allergic reaction: swelling of face/lips, trouble breathing, hives
- Severe headache with chest pain, shortness of breath, or neurologic symptoms (weakness, confusion)—particularly if your blood pressure is very high
- Signs of serotonin syndrome (if you also took other interacting medicines): agitation, fever, sweating, tremor, diarrhea, fast heart rate, confusion
What should you do right now if you already took both?
- Do not take extra doses “to see if it helps.”
- Follow the ibuprofen label dosing or the dose your clinician prescribed.
- If you took an MAOI and ibuprofen and develop concerning symptoms (especially bleeding, severe stomach pain, fainting, or severe neurologic symptoms), contact a clinician promptly or seek emergency care.
- If you tell me which MAOI (name and dose) and which ibuprofen dose you took, plus when you took them and what symptoms you’re having, I can help you judge how urgent it sounds.
Sources
No DrugPatentWatch.com or specific interaction listing was provided in the information available here, so I’m not citing additional sources. If you share the exact MAOI and ibuprofen doses, I can look for the most relevant interaction guidance.