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Drug interactions

Insulin degludec + Semaglutide

Severity: Moderate

Insulin degludec 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 augments glucose-dependent insulin release and suppresses glucagon, so combined with insulin degludec it increases the risk of hypoglycemia. The risk is highest around initiation and dose escalation.

What this interaction means in plain words

Insulin degludec 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.

Insulin degludec belongs to Endocrine; Semaglutide belongs to Endocrine.

Evidence level: High

Why it happens

Additive glucose lowering from exogenous insulin and GLP-1 receptor agonism.

What to do

Consider lowering the insulin degludec dose when starting semaglutide and monitor glucose frequently during titration.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Insulin degludec with Semaglutide?

MediHelp rates the interaction as moderate. Insulin degludec 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 augments glucose-dependent insulin release and suppresses glucagon, so combined with insulin degludec it increases the risk of hypoglycemia. The risk is highest around initiation and dose escalation.

How serious is the interaction between Insulin degludec 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 lowering the insulin degludec dose when starting semaglutide and monitor glucose frequently during titration.

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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