Salbutamol and Theophylline: Drug Interaction Guide

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

Interaction severity: Moderate — caution required

How Salbutamol interacts with Theophylline

Both drugs increase intracellular cAMP and produce additive sympathomimetic and metabolic effects, particularly hypokalaemia, tachycardia and arrhythmias.

What you should do

Monitor serum potassium and ECG in patients receiving high-dose beta-2 agonists with theophylline, especially in acute severe asthma.

Key facts

Severity

Moderate — caution required

Mechanism

Both drugs increase intracellular cAMP and produce additive sympathomimetic and metabolic effects, particularly hypokala...

Action

Monitor serum potassium and ECG in patients receiving high-dose beta-2 agonists with theophylline, especially in acute s...

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 Salbutamol and Theophylline together?

With caution. Monitor serum potassium and ECG in patients receiving high-dose beta-2 agonists with theophylline, especially in acute severe asthma.

What is the severity of this interaction?

The interaction between Salbutamol and Theophylline is classified as Moderate — caution required. Both drugs increase intracellular cAMP and produce additive sympathomimetic and metabolic effects, particularly hypokalaemia, tachycardia and arrhythmias.

What should I do if I'm prescribed both?

Monitor serum potassium and ECG in patients receiving high-dose beta-2 agonists with theophylline, especially in acute severe asthma. Always consult your prescribing clinician — do not stop or change medications without medical guidance.

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