Amiloride and Lisinopril: Drug Interaction Guide

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

Interaction severity: Moderate — caution required

How Amiloride interacts with Lisinopril

Both drugs reduce potassium excretion — amiloride through epithelial sodium channel blockade in the collecting duct, and lisinopril through reduced aldosterone — causing additive hyperkalemia.

What you should do

Avoid routine combination. If required, monitor serum potassium and creatinine within 1 week of initiation and after dose changes, and counsel on dietary potassium.

Key facts

Severity

Moderate — caution required

Mechanism

Both drugs reduce potassium excretion — amiloride through epithelial sodium channel blockade in the collecting duct, and...

Action

Avoid routine combination. If required, monitor serum potassium and creatinine within 1 week of initiation and after dos...

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 Amiloride and Lisinopril together?

With caution. Avoid routine combination. If required, monitor serum potassium and creatinine within 1 week of initiation and after dose changes, and counsel on dietary potassium.

What is the severity of this interaction?

The interaction between Amiloride and Lisinopril is classified as Moderate — caution required. Both drugs reduce potassium excretion — amiloride through epithelial sodium channel blockade in the collecting duct, and lisinopril through reduced aldosterone — causing additive hyperkalemia.

What should I do if I'm prescribed both?

Avoid routine combination. If required, monitor serum potassium and creatinine within 1 week of initiation and after dose changes, and counsel on dietary potassium. Always consult your prescribing clinician — do not stop or change medications without medical guidance.

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