Salmeterol and Timolol: Drug Interaction Guide

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

Interaction severity: Moderate — caution required

How Salmeterol interacts with Timolol

Timolol, including ophthalmic formulations, can block beta-2 receptors and antagonize salmeterol bronchodilation. This may worsen bronchospasm, especially in asthma or COPD.

What you should do

Avoid nonselective beta-blockers in patients requiring beta-2 agonists when possible. Use alternatives and monitor respiratory symptoms.

Key facts

Severity

Moderate — caution required

Mechanism

Timolol, including ophthalmic formulations, can block beta-2 receptors and antagonize salmeterol bronchodilation. This m...

Action

Avoid nonselective beta-blockers in patients requiring beta-2 agonists when possible. Use alternatives and monitor respi...

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 Salmeterol and Timolol together?

With caution. Avoid nonselective beta-blockers in patients requiring beta-2 agonists when possible. Use alternatives and monitor respiratory symptoms.

What is the severity of this interaction?

The interaction between Salmeterol and Timolol is classified as Moderate — caution required. Timolol, including ophthalmic formulations, can block beta-2 receptors and antagonize salmeterol bronchodilation. This may worsen bronchospasm, especially in asthma or COPD.

What should I do if I'm prescribed both?

Avoid nonselective beta-blockers in patients requiring beta-2 agonists when possible. Use alternatives and monitor respiratory symptoms. Always consult your prescribing clinician — do not stop or change medications without medical guidance.

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