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Drug interactions

Lofepramine + Olanzapine

Severity: Moderate

Lofepramine 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

Both drugs cause sedation and have anticholinergic and hypotensive effects, and lofepramine can affect cardiac conduction. Combined use may cause drowsiness, dizziness, constipation and urinary retention.

What this interaction means in plain words

Lofepramine 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.

Evidence level: Low

Why it happens

Additive CNS depressant, anticholinergic and hypotensive effects.

What to do

Monitor sedation, blood pressure and anticholinergic effects, and consider an ECG in patients with cardiac risk factors. Adjust doses if adverse effects appear.

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 Lofepramine with Olanzapine?

MediHelp rates the interaction as moderate. Lofepramine 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. Both drugs cause sedation and have anticholinergic and hypotensive effects, and lofepramine can affect cardiac conduction. Combined use may cause drowsiness, dizziness, constipation and urinary retention.

How serious is the interaction between Lofepramine 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: Monitor sedation, blood pressure and anticholinergic effects, and consider an ECG in patients with cardiac risk factors. Adjust doses if adverse effects appear.

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.

Full monographs, dosing and an interaction checker in the MediHelp app

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