Oxaprozin and Aspirin Interaction
Drug interaction information between Oxaprozin and Aspirin.
Oxaprozin and Aspirin have a documented minor interaction in FDA labeling.
FDA drug labeling documents a minor-severity interaction between Oxaprozin and Aspirin. This page displays the available source-record category and label text. The category is not an individual risk estimate or medication-combination direction.
How They Interact
Using these drugs together can irritate the stomach lining and increase the risk of bleeding. Taking an NSAID with aspirin does not provide more pain relief than taking the NSAID alone.
FDA Label Information
Intervention: Monitor patients with concomitant use of COXANTO with anticoagulants (e.g., warfarin), antiplatelet drugs (e.g., aspirin), SSRIs, and SNRIs for signs of bleeding [ see Warnings and Precautions (5.12) ]. Aspirin Clinical Impact: Controlled clinical studies showed that the concomitant use of NSAIDs and analgesic doses of aspirin does not produce any greater therapeutic effect than the use of NSAIDs alone. In a clinical study, the concomitant use of an NSAID and aspirin was associated with a significantly increased incidence of GI adverse reactions as compared to use of the...
Oxaprozin Also Interacts With
- Furosemide moderate
- Methotrexate moderate
- Diflunisal moderate
- Warfarin moderate
- Meloxicam minor
Aspirin Also Interacts With
- Atenolol major
- Fluoxetine major
- Ibandronate major
- Alendronate moderate
- Apixaban moderate
Frequently Asked Questions
What SPL severity band is on file for Oxaprozin + Aspirin?
Compiled FDA labeling labels this pair minor. That is a source-record field, not an individual medication-combination decision.
Which drug in this pair has the larger labeled-interaction portfolio?
Aspirin has 47 labeled pairs on file vs Oxaprozin's 15. In the minor band specifically: Oxaprozin has 11 (also Meloxicam, Propranolol, Diclofenac, Cyclosporine); Aspirin has 32 (also Carisoprodol, Celecoxib, Colestipol, Diflunisal).
What mechanism field is on file for Oxaprozin and Aspirin?
Using these drugs together can irritate the stomach lining and increase the risk of bleeding. Taking an NSAID with aspirin does not provide more pain relief than taking the NSAID alone.
Aspirin carries more major-labeled pairs than Oxaprozin
SPL source-record counts only. This page's band is minor · classes on file: Oxaprozin (Nonsteroidal Anti-Inflammatory Drug (NSAID)); Aspirin (Antiplatelet / NSAID).
Aspirin has 3 major-labeled pairs vs Oxaprozin's 0. This page itself is in the minor band, not the major band.
0 major · 4 moderate · 11 minor · 15 total
- Other minor peers for Oxaprozin
- Meloxicam
- Propranolol
- Diclofenac
- Cyclosporine
3 major · 12 moderate · 32 minor · 47 total
- Other minor peers for Aspirin
- Carisoprodol
- Celecoxib
- Colestipol
- Diflunisal
Sources: FDA Drug Labels (SPL) via openFDA (2026). This is for informational purposes only and is not medical advice. This registry does not provide individual medication-combination directions.
Read our methodology - how this data is sourced, computed, and verified.