See the DrugPatentWatch profile for Aspirin
What aspirin interactions should you watch for?
Aspirin can interact with other medicines in ways that raise bleeding risk, affect stomach protection, and change how other drugs work in the body. The most important interaction themes are drugs that also thin blood or irritate the stomach.
Which blood-thinning drugs increase bleeding risk with aspirin?
Combining aspirin with other agents that affect clotting can make bleeding more likely, especially gastrointestinal bleeding (stomach/intestinal) and bruising.
- Other antiplatelet/anticoagulant medicines (for example, warfarin or other blood thinners) can increase bleeding risk when taken with aspirin.
- Some people use aspirin with additional therapy after cardiovascular procedures; that pairing is common under clinician guidance, but it still increases bleeding risk.
Do NSAIDs (like ibuprofen or naproxen) interact with aspirin?
Yes. Regular NSAID use alongside aspirin can increase stomach irritation and bleeding risk.
- Ibuprofen and similar NSAIDs can also reduce the antiplatelet effect of low-dose aspirin if timing isn’t managed correctly (this matters most for people taking aspirin specifically for heart/stroke prevention).
Does aspirin interact with stomach-protecting or ulcer medicines?
Aspirin can irritate the stomach lining and increase ulcer risk.
- Proton pump inhibitors and other stomach-protecting strategies are sometimes used when aspirin is needed long-term, particularly in people with prior ulcers or high bleeding risk.
Can aspirin interact with steroids or antidepressants?
Yes.
- Corticosteroids can increase gastrointestinal irritation/ulcer risk when combined with aspirin.
- Some antidepressants that affect serotonin (for example, SSRIs/SNRIs) can increase bleeding risk when combined with aspirin, especially for the gastrointestinal tract.
Are there important vitamin and supplement interactions?
Some supplements can increase bleeding tendency when taken with aspirin (for example, products that affect platelet function or have blood-thinning effects). If you use supplements regularly, it’s worth checking each one and your aspirin dose with a pharmacist.
What about alcohol?
Alcohol increases the chance of stomach irritation and bleeding. The risk goes up when alcohol is taken with aspirin, particularly at higher aspirin doses or with a history of ulcers.
When should you avoid taking aspirin because of interactions?
You should be cautious (and ask a clinician/pharmacist first) if you have:
- A history of stomach ulcers or gastrointestinal bleeding
- A bleeding disorder or low platelet counts
- Ongoing anticoagulant therapy
- Upcoming surgery or dental procedures (you may need timing changes)
- Asthma triggered by aspirin or NSAIDs
How to manage interactions in practice (timing and safety)
The safest approach is to:
- Tell your prescriber/pharmacist every medication and supplement you take.
- Don’t stop aspirin (especially if it’s for heart/stroke prevention) without medical advice.
- If your pharmacist advises dose timing (common with ibuprofen and aspirin), follow that schedule closely.
Quick clarification: what kind of aspirin and what other meds?
“Aspirin interaction” depends heavily on the situation. If you share:
1) your aspirin dose (81 mg low-dose vs 325 mg vs higher),
2) the other medication(s) or supplements you’re asking about,
3) your reason for aspirin (pain vs heart prevention),
I can narrow the interaction risks and what timing or alternatives are usually recommended.