Acetaminophen and Colestyramine: Drug Interaction Guide

Quick answer: Acetaminophen and Colestyramine have a minor interaction — typically manageable with awareness.

Interaction severity: Minor — typically manageable

How Acetaminophen interacts with Colestyramine

Colestyramine can bind acetaminophen in the gastrointestinal tract and reduce or delay its absorption.

What you should do

Give acetaminophen at least 1 hour before or 4 to 6 hours after colestyramine when reliable analgesia is required.

Key facts

Severity

Minor — typically manageable

Mechanism

Colestyramine can bind acetaminophen in the gastrointestinal tract and reduce or delay its absorption.

Action

Give acetaminophen at least 1 hour before or 4 to 6 hours after colestyramine when reliable analgesia is required.

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 Acetaminophen and Colestyramine together?

Usually yes, with awareness. Give acetaminophen at least 1 hour before or 4 to 6 hours after colestyramine when reliable analgesia is required.

What is the severity of this interaction?

The interaction between Acetaminophen and Colestyramine is classified as Minor — typically manageable. Colestyramine can bind acetaminophen in the gastrointestinal tract and reduce or delay its absorption.

What should I do if I'm prescribed both?

Give acetaminophen at least 1 hour before or 4 to 6 hours after colestyramine when reliable analgesia is required. Always consult your prescribing clinician — do not stop or change medications without medical guidance.

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