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Drug interactions

Mirtazapine + Octreotide

Severity: Moderate

Mirtazapine and Octreotide: 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

Octreotide can cause bradycardia and QT prolongation, and mirtazapine has a modest QT effect, so combined use may add to arrhythmia risk. The risk is greatest with cardiac disease or electrolyte disturbances.

What this interaction means in plain words

Mirtazapine and Octreotide 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.

Mirtazapine belongs to Central Nervous System; Octreotide belongs to Endocrine.

Evidence level: Low

Why it happens

Additive QT prolongation, with octreotide-related bradycardia increasing susceptibility.

What to do

Obtain a baseline ECG in patients with cardiac risk factors and monitor heart rate and QTc. Correct potassium and magnesium abnormalities.

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 Mirtazapine with Octreotide?

MediHelp rates the interaction as moderate. Mirtazapine and Octreotide 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. Octreotide can cause bradycardia and QT prolongation, and mirtazapine has a modest QT effect, so combined use may add to arrhythmia risk. The risk is greatest with cardiac disease or electrolyte disturbances.

How serious is the interaction between Mirtazapine and Octreotide?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Obtain a baseline ECG in patients with cardiac risk factors and monitor heart rate and QTc. Correct potassium and magnesium abnormalities.

What other medicines interact with Mirtazapine?

MediHelp also lists interactions of Mirtazapine with, for example, Isocarboxazid, Phenelzine, Pimozide. The full list is on the Mirtazapine page.

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

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