Drug interactions
Metformin-pioglitazone + Pentamidine
Severity: Moderate
Metformin-pioglitazone and Pentamidine: 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
Pentamidine can damage pancreatic beta cells, causing initial hypoglycemia followed by insulin deficiency and hyperglycemia or diabetes. This can disturb glucose control in patients taking metformin and pioglitazone, and may require changes to therapy.
What this interaction means in plain words
Metformin-pioglitazone and Pentamidine 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.
Metformin-pioglitazone belongs to Endocrine; Pentamidine belongs to Anti Parasitic.
Why it happens
Pentamidine is toxic to pancreatic islet beta cells, which alters insulin release and opposes or confuses the effect of oral antidiabetics.
What to do
Monitor blood glucose frequently during and after pentamidine treatment. Adjust antidiabetic therapy for either hypoglycemia or hyperglycemia.
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
Other interactions of Pentamidine
- Clomipramine + Pentamidine Contraindicated
- Desipramine + Pentamidine Contraindicated
- Dronedarone + Pentamidine Contraindicated
- Moxifloxacin + Pentamidine Contraindicated
- Nortriptyline + Pentamidine Contraindicated
- Pentamidine + Pimozide Contraindicated
Frequently asked questions
Can I take Metformin-pioglitazone with Pentamidine?
MediHelp rates the interaction as moderate. Metformin-pioglitazone and Pentamidine 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. Pentamidine can damage pancreatic beta cells, causing initial hypoglycemia followed by insulin deficiency and hyperglycemia or diabetes. This can disturb glucose control in patients taking metformin and pioglitazone, and may require changes to therapy.
How serious is the interaction between Metformin-pioglitazone and Pentamidine?
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 blood glucose frequently during and after pentamidine treatment. Adjust antidiabetic therapy for either hypoglycemia or hyperglycemia.
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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