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Interazioni tra farmaci

Cisapride + Ribociclib

Gravità: Controindicata

Cisapride and Ribociclib: contraindicated interaction.

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Sintesi

Ribociclib is a moderate CYP3A4 inhibitor and also prolongs the QT interval in a dose-dependent manner. Combined with cisapride, which is a CYP3A4 substrate with a known risk of torsades de pointes, this could produce serious arrhythmia.

Cosa significa questa interazione in parole semplici

Cisapride and Ribociclib 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.

Cisapride belongs to Gastrointestinal Tract; Ribociclib belongs to Oncology.

Livello di evidenza: Moderate

Perché avviene

Ribociclib inhibits CYP3A4, which may increase cisapride exposure, and both drugs prolong the QT interval additively.

Cosa fare

Avoid the combination and choose a non-QT-prolonging prokinetic or antiemetic. If it cannot be avoided, specialist supervision with ECG and electrolyte monitoring is required.

Cosa chiedere al farmacista

  • 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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Domande frequenti

Can I take Cisapride with Ribociclib?

MediHelp rates the interaction as contraindicated. Cisapride and Ribociclib 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. Ribociclib is a moderate CYP3A4 inhibitor and also prolongs the QT interval in a dose-dependent manner. Combined with cisapride, which is a CYP3A4 substrate with a known risk of torsades de pointes, this could produce serious arrhythmia.

How serious is the interaction between Cisapride and Ribociclib?

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 choose a non-QT-prolonging prokinetic or antiemetic. If it cannot be avoided, specialist supervision with ECG and electrolyte monitoring is required.

What other medicines interact with Cisapride?

MediHelp also lists interactions of Cisapride with, for example, Apomorphine, Artemether, Azithromycin. The full list is on the Cisapride page.

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