Drug interactions
Insulin aspart protamine / insulin aspart + Metformin-pioglitazone
Severity: Moderate
Insulin aspart protamine / insulin aspart 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
Combining insulin with metformin and pioglitazone increases the glucose-lowering effect and the risk of hypoglycemia. Pioglitazone with insulin also raises the risk of fluid retention, edema and heart failure.
What this interaction means in plain words
Insulin aspart protamine / insulin aspart 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
Additive glucose lowering through different mechanisms; pioglitazone plus insulin increases fluid retention.
What to do
Monitor blood glucose and reduce the insulin dose if hypoglycemia occurs. Watch for edema, rapid weight gain and heart failure symptoms.
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 Insulin aspart protamine / insulin aspart with Metformin-pioglitazone?
MediHelp rates the interaction as moderate. Insulin aspart protamine / insulin aspart 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. Combining insulin with metformin and pioglitazone increases the glucose-lowering effect and the risk of hypoglycemia. Pioglitazone with insulin also raises the risk of fluid retention, edema and heart failure.
How serious is the interaction between Insulin aspart protamine / insulin aspart 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 blood glucose and reduce the insulin dose if hypoglycemia occurs. Watch for edema, rapid weight gain and heart failure symptoms.
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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