Drug interactions
Metformin-pioglitazone + Methazolamide
Severity: Moderate
Metformin-pioglitazone and Methazolamide: 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
Carbonic anhydrase inhibitors can cause metabolic acidosis, which may add to the risk of metformin-associated lactic acidosis, particularly with renal impairment.
What this interaction means in plain words
Metformin-pioglitazone and Methazolamide 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
Carbonic anhydrase inhibition causes bicarbonate loss and acidosis, adding to the lactate accumulation risk of metformin.
What to do
Monitor acid-base status, serum bicarbonate and renal function, and stop metformin if acidosis develops.
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 Metformin-pioglitazone with Methazolamide?
MediHelp rates the interaction as moderate. Metformin-pioglitazone and Methazolamide 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. Carbonic anhydrase inhibitors can cause metabolic acidosis, which may add to the risk of metformin-associated lactic acidosis, particularly with renal impairment.
How serious is the interaction between Metformin-pioglitazone and Methazolamide?
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 acid-base status, serum bicarbonate and renal function, and stop metformin if acidosis develops.
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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