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Drug interactions

Insulin glulisine + Olanzapine

Severity: Moderate

Insulin glulisine and Olanzapine: 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

Olanzapine can raise blood glucose through insulin resistance and weight gain, working against insulin glulisine. Mealtime insulin doses may need to be increased.

What this interaction means in plain words

Insulin glulisine and Olanzapine 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 glulisine belongs to Endocrine; Olanzapine belongs to Central Nervous System.

Evidence level: High

Why it happens

Olanzapine induces insulin resistance and impaired glucose regulation, opposing insulin action.

What to do

Increase glucose monitoring around olanzapine initiation or dose changes and adjust insulin glulisine doses. Reassess if olanzapine is stopped because hypoglycemia risk may rise.

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 glulisine with Olanzapine?

MediHelp rates the interaction as moderate. Insulin glulisine and Olanzapine 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. Olanzapine can raise blood glucose through insulin resistance and weight gain, working against insulin glulisine. Mealtime insulin doses may need to be increased.

How serious is the interaction between Insulin glulisine and Olanzapine?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Increase glucose monitoring around olanzapine initiation or dose changes and adjust insulin glulisine doses. Reassess if olanzapine is stopped because hypoglycemia risk may rise.

What other medicines interact with Olanzapine?

MediHelp also lists interactions of Olanzapine with, for example, Amisulpride, Amoxapine, Apomorphine. The full list is on the Olanzapine page.

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