Drug interactions
Insulin lispro protamine / insulin lispro + Semaglutide
Severity: Moderate
Insulin lispro protamine / insulin lispro and Semaglutide: 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
Semaglutide combined with premixed lispro insulin increases glucose lowering and the risk of hypoglycemia. The risk is greatest when initiating semaglutide without an insulin dose reduction.
What this interaction means in plain words
Insulin lispro protamine / insulin lispro and Semaglutide 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 pharmacodynamic glucose lowering, as semaglutide enhances glucose-dependent insulin secretion and suppresses glucagon alongside exogenous insulin.
What to do
Consider reducing the insulin dose when starting semaglutide and monitor blood glucose frequently. Titrate insulin to glucose readings.
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 Semaglutide
Frequently asked questions
Can I take Insulin lispro protamine / insulin lispro with Semaglutide?
MediHelp rates the interaction as moderate. Insulin lispro protamine / insulin lispro and Semaglutide 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. Semaglutide combined with premixed lispro insulin increases glucose lowering and the risk of hypoglycemia. The risk is greatest when initiating semaglutide without an insulin dose reduction.
How serious is the interaction between Insulin lispro protamine / insulin lispro and Semaglutide?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Consider reducing the insulin dose when starting semaglutide and monitor blood glucose frequently. Titrate insulin to glucose readings.
What other medicines interact with Semaglutide?
MediHelp also lists interactions of Semaglutide with, for example, Insulin degludec-liraglutide, Insulin glargine-lixisenatide, Chlorpropamide. The full list is on the Semaglutide page.
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