Drug interactions
Ibuprofen / famotidine + Metformin-pioglitazone
Severity: Moderate
Ibuprofen / famotidine and Metformin-pioglitazone: moderate interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Famotidine is cleared by renal tubular secretion and may compete with metformin, and NSAIDs can reduce renal function. Either effect can raise metformin concentrations, especially in patients with renal impairment. NSAIDs may also cause fluid retention, which adds to the edema risk of pioglitazone.
What this interaction means in plain words
Ibuprofen / famotidine and Metformin-pioglitazone can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Why it happens
Competition for renal tubular cationic transport (OCT2/MATE) by famotidine and NSAID-related reduction in renal perfusion decrease metformin elimination.
What to do
Monitor renal function and watch for signs of lactic acidosis in at-risk patients, and monitor for edema and fluid retention.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Metformin-pioglitazone
Frequently asked questions
Can I take Ibuprofen / famotidine with Metformin-pioglitazone?
MediHelp rates the interaction as moderate. Ibuprofen / famotidine and Metformin-pioglitazone can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Famotidine is cleared by renal tubular secretion and may compete with metformin, and NSAIDs can reduce renal function. Either effect can raise metformin concentrations, especially in patients with renal impairment. NSAIDs may also cause fluid retention, which adds to the edema risk of pioglitazone.
How serious is the interaction between Ibuprofen / famotidine and Metformin-pioglitazone?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor renal function and watch for signs of lactic acidosis in at-risk patients, and monitor for edema and fluid retention.
What other medicines interact with Metformin-pioglitazone?
MediHelp also lists interactions of Metformin-pioglitazone with, for example, Contrast media, Diatrizoate meglumine / diatrizoate, Diatrizoate. The full list is on the Metformin-pioglitazone page.
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