Gemfibrozil and Pioglitazone: Drug Interaction Guide
Quick answer: This is a major interaction — avoid combining Gemfibrozil and Pioglitazone unless specifically directed by your doctor.
How Gemfibrozil interacts with Pioglitazone
Gemfibrozil potently inhibits CYP2C8, increasing pioglitazone exposure approximately 3-fold and risk of fluid retention, heart failure and hypoglycaemia.
What you should do
Avoid combination; use fenofibrate as alternative lipid-lowering agent. If unavoidable, reduce pioglitazone to maximum 15 mg daily and monitor weight and oedema.
Key facts
Severity
Major — avoid combination
Mechanism
Gemfibrozil potently inhibits CYP2C8, increasing pioglitazone exposure approximately 3-fold and risk of fluid retention,...
Action
Avoid combination; use fenofibrate as alternative lipid-lowering agent. If unavoidable, reduce pioglitazone to maximum 1...
Frequently asked questions
Can I take Gemfibrozil and Pioglitazone together?
No — this combination should generally be avoided. Avoid combination; use fenofibrate as alternative lipid-lowering agent. If unavoidable, reduce pioglitazone to maximum 15 mg daily and monitor weight and oedema.
What is the severity of this interaction?
The interaction between Gemfibrozil and Pioglitazone is classified as Major — avoid combination. Gemfibrozil potently inhibits CYP2C8, increasing pioglitazone exposure approximately 3-fold and risk of fluid retention, heart failure and hypoglycaemia.
What should I do if I'm prescribed both?
Avoid combination; use fenofibrate as alternative lipid-lowering agent. If unavoidable, reduce pioglitazone to maximum 15 mg daily and monitor weight and oedema. Always consult your prescribing clinician — do not stop or change medications without medical guidance.
Last reviewed: by iMedic Medical Editorial Team. Our editorial process.