Losartan and Naproxen: Drug Interaction Guide

Quick answer: This combination requires caution. Losartan and Naproxen can be used together with adjustments and monitoring.

Interaction severity: Moderate — caution required

How Losartan interacts with Naproxen

Naproxen inhibits renal prostaglandin synthesis and may reduce renal perfusion, while losartan alters glomerular haemodynamics through angiotensin II blockade. The combination can impair renal function and reduce antihypertensive effect.

What you should do

Use NSAIDs cautiously and for the shortest possible duration. Monitor blood pressure, creatinine, and potassium, especially in chronic kidney disease, heart failure, or dehydration.

Key facts

Severity

Moderate — caution required

Mechanism

Naproxen inhibits renal prostaglandin synthesis and may reduce renal perfusion, while losartan alters glomerular haemody...

Action

Use NSAIDs cautiously and for the shortest possible duration. Monitor blood pressure, creatinine, and potassium, especia...

Important medical disclaimer: This page provides educational information about drug interactions for general reference. It is not a substitute for professional medical advice, diagnosis, or treatment. Always discuss your specific medications with a qualified healthcare provider before starting, stopping, or changing any treatment. About our editorial team.

Frequently asked questions

Can I take Losartan and Naproxen together?

With caution. Use NSAIDs cautiously and for the shortest possible duration. Monitor blood pressure, creatinine, and potassium, especially in chronic kidney disease, heart failure, or dehydration.

What is the severity of this interaction?

The interaction between Losartan and Naproxen is classified as Moderate — caution required. Naproxen inhibits renal prostaglandin synthesis and may reduce renal perfusion, while losartan alters glomerular haemodynamics through angiotensin II blockade. The combination can impair renal function and reduce antihypertensive effect.

What should I do if I'm prescribed both?

Use NSAIDs cautiously and for the shortest possible duration. Monitor blood pressure, creatinine, and potassium, especially in chronic kidney disease, heart failure, or dehydration. Always consult your prescribing clinician — do not stop or change medications without medical guidance.

Last reviewed: by iMedic Medical Editorial Team. Our editorial process.