Drug interactions
Exenatide + Olanzapine
Severity: Moderate
Exenatide 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 frequently causes weight gain, insulin resistance and hyperglycemia, which can counteract exenatide's glucose-lowering effect. Glycemic control may worsen after starting or increasing olanzapine.
What this interaction means in plain words
Exenatide 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.
Exenatide belongs to Endocrine; Olanzapine belongs to Central Nervous System.
Why it happens
Pharmacodynamic antagonism: olanzapine induces insulin resistance and metabolic disturbance, opposing incretin-based therapy.
What to do
Check glucose and HbA1c at baseline and regularly during olanzapine therapy. Titrate antidiabetic therapy as required.
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 Exenatide
- Chlorpropamide + Exenatide Major
- Asenapine + Exenatide Moderate
- Betamethasone + Exenatide Moderate
- Chlorothiazide + Exenatide Moderate
- Clozapine + Exenatide Moderate
- Cortisone + Exenatide Moderate
Other interactions of Olanzapine
Frequently asked questions
Can I take Exenatide with Olanzapine?
MediHelp rates the interaction as moderate. Exenatide 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 frequently causes weight gain, insulin resistance and hyperglycemia, which can counteract exenatide's glucose-lowering effect. Glycemic control may worsen after starting or increasing olanzapine.
How serious is the interaction between Exenatide 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: Check glucose and HbA1c at baseline and regularly during olanzapine therapy. Titrate antidiabetic therapy as required.
What other medicines interact with Exenatide?
MediHelp also lists interactions of Exenatide with, for example, Chlorpropamide, Asenapine, Betamethasone. The full list is on the Exenatide page.
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