Nicardipine and Furosemide Interaction
Drug interaction information between Nicardipine and Furosemide.
Nicardipine and Furosemide have a documented minor interaction in FDA labeling.
FDA drug labeling documents a minor-severity interaction between Nicardipine and Furosemide. Major interactions are generally avoided, moderate ones may need monitoring or a dose adjustment, and minor ones are usually low-risk. This page shows the documented mechanism and guidance. Label-documented interactions are not a complete safety review, so always confirm your own medications with a pharmacist or doctor. Educational information, not medical advice.
How They Interact
These drugs do not interfere with how nicardipine attaches to proteins in the blood.
What To Do
No dosage changes are usually needed when taking these medications together.
FDA Label Information
When therapeutic concentrations of furosemide, propranolol, dipyridamole, warfarin, quinidine or naproxen were added to human plasma (in vitro), the plasma protein binding of nicardipine hydrochloride capsules were not altered.
Nicardipine Also Interacts With
- Digoxin major
- Nirmatrelvir/Ritonavir moderate
- Tacrolimus Topical moderate
- Propranolol minor
- Naproxen minor
Furosemide Also Interacts With
- Dutasteride major
- Dutasteride/Tamsulosin major
- Tamsulosin major
- Cyclosporine moderate
- Lithium moderate
Frequently Asked Questions
Can I take Nicardipine and Furosemide together?
This is a minor interaction. No dosage changes are usually needed when taking these medications together.
How serious is the interaction between Nicardipine and Furosemide?
This interaction is classified as "minor" severity by the FDA. Minor interactions are unlikely to cause significant problems but should still be mentioned to your healthcare provider.
Why do Nicardipine and Furosemide interact?
These drugs do not interfere with how nicardipine attaches to proteins in the blood.
Understanding the Nicardipine and Furosemide Interaction
FDA-approved prescribing information for these two drugs flags their combination as a minor-severity interaction. Nicardipine belongs to the Calcium Channel Blocker class and Furosemide belongs to the Loop Diuretic class - two categories that can collide when co-prescribed. The mechanism described in FDA labeling is: These drugs do not interfere with how nicardipine attaches to proteins in the blood. Severity tiers matter: major flags generally advise avoidance, moderate flags often require monitoring or dose adjustment, and minor flags may only call for awareness.
Context around a specific patient determines real-world impact. Nicardipine has 14 total documented interactions on file in this dataset, and Furosemide has 36. Each additional medication compounds the interaction surface, which is why pharmacists run full-profile checks rather than evaluating one pair at a time. FDA-derived guidance for this pair is: No dosage changes are usually needed when taking these medications together. Timing of doses, renal and hepatic function, age, and other concurrent prescriptions all shape whether a labeled interaction matters clinically.
An interaction flag is not a verdict. A large share of labeled interactions are managed routinely in clinical practice, the fix may be as simple as spacing doses or adding a monitoring test. Others require the prescriber to choose a different medication entirely. This page surfaces FDA-sourced labeling and openFDA data for educational purposes only; it is not medical advice and cannot account for your full clinical picture. Never start, stop, or adjust either Nicardipine or Furosemide based on a web page, speak with your prescriber or pharmacist before making any change.
Sources: FDA Drug Labels (SPL) via openFDA (2026). This is for informational purposes only and is not medical advice. Always consult your healthcare provider about drug interactions.
Read our methodology - how this data is sourced, computed, and verified.