Naproxen and esomeprazole and Warfarin interaction
Naproxen and esomeprazole and Warfarin: both prescribing labels describe an interaction that usually calls for monitoring, a dose change, or spacing the doses.
Usually manageable with monitoring or a dose change. Tell your pharmacist you take both.
What the FDA labels say
From the Naproxen and esomeprazole (Naproxen and esomeprazole magnesium) label · effective 2026-05-27
Esomeprazole Magnesium • Increased INR and prothrombin time in patients treated with PPIs, including esomeprazole, and warfarin concomitantly.
Other factors that increase the risk for GI bleeding in patients treated with NSAIDs include longer duration of NSAID therapy; concomitant use of oral corticosteroids, aspirin, anticoagulants, or selective serotonin reuptake inhibitors (SSRIs); smoking; use of alcohol; older age; and poor general health status.
Co-morbid conditions such as coagulation disorders or concomitant use of warfarin and other anticoagulants, antiplatelet agents (e.g., aspirin), and serotonin reuptake inhibitors (SSRIs) and serotonin norepinephrine reuptake inhibitors (SNRIs) may increase the risk.
Table 3: Clinically Significant Drug Interactions with Naproxen and Esomeprazole Magnesium – Affecting Drugs Co-Administered with N aproxen and Esomeprazole Magnesium Delayed-Release Tablets and Interactions with Diagnostics Clinical Impact : Naproxen • Naproxen and anticoagulants such as warfarin have a synergistic effect on bleeding.
The concomitant use of naproxen and anticoagulants have increased the risk of serious bleeding compared to the use of either drug alone.
From the Warfarin (Warfarin Sodium) label · effective 2026-06-24
…Drugs Anticoagulants argatroban, dabigatran, bivalirudin, desirudin, heparin, lepirudin Antiplatelet Agents aspirin, cilostazol, clopidogrel, dipyridamole, prasugrel, ticlopidine Non-steroidal Anti-Inflammatory Agents celecoxib, diclofenac, diflunisal, fenoprofen, ibuprofen, indomethacin, ketoprofen, ketorolac, mefenamic acid, naproxen, oxaprozin, piroxicam,…
Taking more than these two? Interactions stack. Check your whole list at once; it stays in your browser.
Open in the checkerNot medical advice. Interaction Checker quotes FDA label text and NIH fact sheets. Whether an interaction matters for you depends on doses, timing, kidney and liver function, and other conditions. Confirm with a pharmacist or prescriber.