Pioglitazoneinteractions

pioglitazone 45 MG Oral Tablet [Actos]

This is the interactions section of this product’s FDA label — what the manufacturer documented for this drug. It is not a check of your medication list, and a drug missing from it has not been cleared: licensed clinical databases list far more interactions than any single label does. Before combining medicines, ask a pharmacist, who can check everything you take at once and will do it for free.

Named on this label

Every name above is printed in the text below. This is not the full set of drugs that interact with this one — it is the set this manufacturer wrote down.

Drug interactions

Strong CYP2C8 inhibitors (e.g., gemfibrozil) increase pioglitazone concentrations. Limit ACTOS dose to 15 mg daily.

CYP2C8 inducers (e.g., rifampin) may decrease pioglitazone concentrations.

Topiramate may decrease pioglitazone concentrations.

7.1 Strong CYP2C8

Inhibitors An inhibitor of CYP2C8 (e.g., gemfibrozil) significantly increases the exposure (area under the serum concentration-time curve or AUC) and half-life (t 1/2 ) of pioglitazone. Therefore, the maximum recommended dose of ACTOS is 15 mg daily if used in combination with gemfibrozil or other strong CYP2C8 inhibitors.

7.2 CYP2C8 Inducers

An inducer of CYP2C8 (e.g., rifampin) may significantly decrease the exposure (AUC) of pioglitazone. Therefore, if an inducer of CYP2C8 is started or stopped during treatment with ACTOS, changes in diabetes treatment may be needed based on clinical response without exceeding the maximum recommended daily dose of 45 mg for ACTOS. 7.3 Topiramate A decrease in the exposure of pioglitazone and its active metabolites were noted with concomitant administration of pioglitazone and topiramate. The clinical relevance of this decrease is unknown; however, when ACTOS and topiramate are used concomitantly, monitor patients for adequate glycemic control.

Text above is quoted in full from the FDA-approved drug label published by openFDA, effective March 28, 2025. Matched to this product by RxNorm code. Cross-references to other sections of the full prescribing information have been removed, since they point to a document not shown here. Nothing else is changed: no sentence is shortened, reworded or summarised.

This page reproduces regulatory text for reference. It is not medical advice, and KenyRx is not a pharmacy or a prescriber. Talk to a doctor or pharmacist about whether a medicine is right for you.

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