Metformin and Propranolol: Drug Interaction Guide

Quick answer: Metformin and Propranolol have a minor interaction — typically manageable with awareness.

Interaction severity: Minor — typically manageable

How Metformin interacts with Propranolol

Beta-blockers can mask adrenergic warning symptoms of hypoglycaemia such as tremor and tachycardia. Non-selective beta-blockade may also impair glycogenolysis during hypoglycaemia.

What you should do

Advise patients that sweating or neuroglycopenic symptoms may still occur. Monitor glucose more closely when therapy changes or during reduced food intake.

Key facts

Severity

Minor — typically manageable

Mechanism

Beta-blockers can mask adrenergic warning symptoms of hypoglycaemia such as tremor and tachycardia. Non-selective beta-b...

Action

Advise patients that sweating or neuroglycopenic symptoms may still occur. Monitor glucose more closely when therapy cha...

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 Metformin and Propranolol together?

Usually yes, with awareness. Advise patients that sweating or neuroglycopenic symptoms may still occur. Monitor glucose more closely when therapy changes or during reduced food intake.

What is the severity of this interaction?

The interaction between Metformin and Propranolol is classified as Minor — typically manageable. Beta-blockers can mask adrenergic warning symptoms of hypoglycaemia such as tremor and tachycardia. Non-selective beta-blockade may also impair glycogenolysis during hypoglycaemia.

What should I do if I'm prescribed both?

Advise patients that sweating or neuroglycopenic symptoms may still occur. Monitor glucose more closely when therapy changes or during reduced food intake. Always consult your prescribing clinician — do not stop or change medications without medical guidance.

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