Drug interactions
Insulin degludec + Pioglitazone
Severity: Major
Insulin degludec and Pioglitazone: major 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
Pioglitazone increases insulin sensitivity and enhances the glucose-lowering effect of insulin, which increases hypoglycemia risk. Both drugs can also cause fluid retention, so the combination raises the risk of edema and heart failure.
What this interaction means in plain words
Insulin degludec and Pioglitazone can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Insulin degludec belongs to Endocrine; Pioglitazone belongs to Endocrine.
Why it happens
Additive glucose lowering from improved insulin sensitivity plus exogenous insulin; thiazolidinedione-related fluid retention is also additive with insulin.
What to do
Monitor blood glucose and reduce the insulin dose if hypoglycemia occurs. Monitor for weight gain, edema and heart failure symptoms, and avoid in patients with symptomatic heart failure.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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Other interactions of Insulin degludec
Other interactions of Pioglitazone
Frequently asked questions
Can I take Insulin degludec with Pioglitazone?
MediHelp rates the interaction as major. Insulin degludec and Pioglitazone can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Pioglitazone increases insulin sensitivity and enhances the glucose-lowering effect of insulin, which increases hypoglycemia risk. Both drugs can also cause fluid retention, so the combination raises the risk of edema and heart failure.
How serious is the interaction between Insulin degludec and Pioglitazone?
MediHelp rates it major, 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. Monitor for weight gain, edema and heart failure symptoms, and avoid in patients with symptomatic heart failure.
What other medicines interact with Insulin degludec?
MediHelp also lists interactions of Insulin degludec with, for example, Alogliptin-pioglitazone, Ethanol, Glimepiride-pioglitazone. The full list is on the Insulin degludec page.
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