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Drug interactions

Asenapine + Escitalopram

Severity: Moderate

Asenapine and Escitalopram: 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 can prolong the QT interval, so combined use may add to the risk of ventricular arrhythmias including torsades de pointes. The risk is greater with electrolyte disturbances, bradycardia or existing cardiac disease.

What this interaction means in plain words

Asenapine and Escitalopram 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.

Asenapine belongs to Central Nervous System; Escitalopram belongs to Central Nervous System.

Evidence level: Low

Why it happens

Additive pharmacodynamic QT prolongation through cardiac repolarization (hERG potassium channel) effects.

What to do

Obtain a baseline ECG and correct potassium and magnesium before combining. Repeat the ECG after initiation and avoid the combination in patients with congenital long QT or other QT-prolonging drugs.

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 Asenapine with Escitalopram?

MediHelp rates the interaction as moderate. Asenapine and Escitalopram 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 can prolong the QT interval, so combined use may add to the risk of ventricular arrhythmias including torsades de pointes. The risk is greater with electrolyte disturbances, bradycardia or existing cardiac disease.

How serious is the interaction between Asenapine and Escitalopram?

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 correct potassium and magnesium before combining. Repeat the ECG after initiation and avoid the combination in patients with congenital long QT or other QT-prolonging drugs.

What other medicines interact with Escitalopram?

MediHelp also lists interactions of Escitalopram with, for example, Cisapride, Citalopram, Isocarboxazid. The full list is on the Escitalopram page.

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