Ramipril and Warfarin Interaction
Drug interaction information between Ramipril and Warfarin.
Ramipril and Warfarin have a documented minor interaction in FDA labeling.
FDA drug labeling documents a minor-severity interaction between Ramipril and Warfarin. 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
Ramipril does not interfere with the blood-thinning effects of this medication.
FDA Label Information
The co-administration of ramipril and warfarin did not adversely affect the anticoagulation effects of the latter drug.
Ramipril Also Interacts With
- Spironolactone moderate
- Telmisartan moderate
- Lithium moderate
- Amiloride moderate
- Simvastatin minor
Warfarin Also Interacts With
- Fluoxetine major
- Tamoxifen major
- Ibuprofen moderate
- Aspirin moderate
- Diclofenac moderate
Frequently Asked Questions
What SPL severity band is on file for Ramipril + Warfarin?
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?
Warfarin has 163 labeled pairs on file vs Ramipril's 11. In the minor band specifically: Ramipril has 7 (also Simvastatin, Furosemide, Propranolol, Digoxin); Warfarin has 133 (also Atorvastatin, Amlodipine, Omeprazole, Famotidine).
What mechanism field is on file for Ramipril and Warfarin?
Ramipril does not interfere with the blood-thinning effects of this medication.
Warfarin carries more major-labeled pairs than Ramipril
SPL source-record counts only. This page's band is minor · classes on file: Ramipril (ACE Inhibitor); Warfarin (Vitamin K Antagonist (Anticoagulant)).
Warfarin has 2 major-labeled pairs vs Ramipril's 0. This page itself is in the minor band, not the major band.
0 major · 4 moderate · 7 minor · 11 total
- Other minor peers for Ramipril
- Simvastatin
- Furosemide
- Propranolol
- Digoxin
2 major · 28 moderate · 133 minor · 163 total
- Other minor peers for Warfarin
- Atorvastatin
- Amlodipine
- Omeprazole
- Famotidine
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.