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Interazioni tra farmaci

Dacomitinib + Thioridazine

Gravità: Controindicata

Dacomitinib and Thioridazine: contraindicated interaction.

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Sintesi

Dacomitinib strongly inhibits CYP2D6, which is the main route of thioridazine clearance. Higher thioridazine levels increase the risk of QT prolongation and torsades de pointes.

Cosa significa questa interazione in parole semplici

Dacomitinib and Thioridazine 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.

Dacomitinib belongs to Oncology; Thioridazine belongs to Central Nervous System.

Livello di evidenza: Moderate

Perché avviene

Dacomitinib inhibits CYP2D6, reducing thioridazine metabolism and raising its concentrations.

Cosa fare

Avoid the combination; use an antipsychotic not dependent on CYP2D6 or an alternative EGFR inhibitor. If unavoidable, monitor ECG closely.

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 Dacomitinib with Thioridazine?

MediHelp rates the interaction as contraindicated. Dacomitinib and Thioridazine 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. Dacomitinib strongly inhibits CYP2D6, which is the main route of thioridazine clearance. Higher thioridazine levels increase the risk of QT prolongation and torsades de pointes.

How serious is the interaction between Dacomitinib and Thioridazine?

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; use an antipsychotic not dependent on CYP2D6 or an alternative EGFR inhibitor. If unavoidable, monitor ECG closely.

What other medicines interact with Thioridazine?

MediHelp also lists interactions of Thioridazine with, for example, Abiraterone, Adagrasib, Amiodarone. The full list is on the Thioridazine page.

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