Drug interactions
Insulin detemir + Metformin-pioglitazone
Severity: Moderate
Insulin detemir 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 improves glycemic control but raises the risk of hypoglycemia. Insulin together with pioglitazone also increases the likelihood of fluid retention, edema and heart failure.
What this interaction means in plain words
Insulin detemir 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.
Insulin detemir belongs to Endocrine; Metformin-pioglitazone belongs to Endocrine.
Why it happens
Additive glucose-lowering effects through different pathways, and pioglitazone-related sodium and fluid retention is amplified by insulin.
What to do
Monitor blood glucose and reduce the insulin dose if hypoglycemia occurs when starting the combination. Watch for weight gain, edema and signs of heart failure, particularly in patients with cardiac risk.
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 Insulin detemir
Frequently asked questions
Can I take Insulin detemir with Metformin-pioglitazone?
MediHelp rates the interaction as moderate. Insulin detemir 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 improves glycemic control but raises the risk of hypoglycemia. Insulin together with pioglitazone also increases the likelihood of fluid retention, edema and heart failure.
How serious is the interaction between Insulin detemir 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 when starting the combination. Watch for weight gain, edema and signs of heart failure, particularly in patients with cardiac risk.
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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