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Drug interactions

Clomipramine + Ziprasidone

Severity: Contraindicated

Clomipramine and Ziprasidone: contraindicated 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 prolong the QT interval, and ziprasidone labeling advises against combining it with other QT-prolonging drugs. The risk of torsades de pointes and sudden cardiac death is increased.

What this interaction means in plain words

Clomipramine and Ziprasidone are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two.

Clomipramine belongs to Central Nervous System; Ziprasidone belongs to Central Nervous System.

Evidence level: Moderate

Why it happens

Additive QT prolongation through cardiac potassium channel blockade.

What to do

Avoid the combination and use an alternative antipsychotic or antidepressant with less QT effect.

What to ask your pharmacist

  • Is there an alternative to one of these two medicines for me?
  • If both are essential, who is monitoring me and how often?
  • Which symptoms mean I should stop and seek help straight away?

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 Clomipramine with Ziprasidone?

MediHelp rates the interaction as contraindicated. Clomipramine and Ziprasidone are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two. Both drugs prolong the QT interval, and ziprasidone labeling advises against combining it with other QT-prolonging drugs. The risk of torsades de pointes and sudden cardiac death is increased.

How serious is the interaction between Clomipramine and Ziprasidone?

MediHelp rates it contraindicated, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination and use an alternative antipsychotic or antidepressant with less QT effect.

What other medicines interact with Clomipramine?

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

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