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Drug interactions

Maprotiline + Octreotide

Severity: Moderate

Maprotiline 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 maprotiline, a tetracyclic antidepressant, can also prolong the QT interval. Together they may increase the risk of arrhythmia, especially with bradycardia or electrolyte disturbance.

What this interaction means in plain words

Maprotiline 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.

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

Evidence level: Low

Why it happens

Additive effects on cardiac repolarization, with octreotide-related bradycardia further predisposing to QT-related arrhythmia.

What to do

Obtain a baseline ECG and monitor heart rate and QTc during co-therapy. Correct potassium and magnesium abnormalities and consider an alternative antidepressant in patients with other QT risk factors.

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 Maprotiline with Octreotide?

MediHelp rates the interaction as moderate. Maprotiline 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 maprotiline, a tetracyclic antidepressant, can also prolong the QT interval. Together they may increase the risk of arrhythmia, especially with bradycardia or electrolyte disturbance.

How serious is the interaction between Maprotiline 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 and monitor heart rate and QTc during co-therapy. Correct potassium and magnesium abnormalities and consider an alternative antidepressant in patients with other QT risk factors.

What other medicines interact with Maprotiline?

MediHelp also lists interactions of Maprotiline with, for example, Arsenic trioxide, Disopyramide, Dofetilide. The full list is on the Maprotiline page.

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