Aller au contenu
MediHelp
MediHelp Référence médicamenteuse

Interactions médicamenteuses

Lithium + Thioridazine

Gravité: Contre-indiquée

Lithium and Thioridazine: contraindicated interaction.

Dernière mise à jour

Réservé aux professionnels de santé — à titre de référence uniquement. Cette page est un bref résumé, pas un avis médical, et ne remplace ni la notice officielle ni le jugement clinique. Vérifiez toujours avant de prescrire ou de délivrer.

Le contenu clinique de cette page n'est disponible qu'en anglais.

Résumé

Thioridazine strongly prolongs the QTc interval and can cause torsades de pointes, and lithium can add to QT effects and electrolyte disturbance. Combined use may also raise the risk of neurotoxicity. Thioridazine labeling carries a boxed warning on QT risk and the pair is generally avoided.

Ce que signifie cette interaction, en termes simples

Lithium 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.

Lithium belongs to Central Nervous System; Thioridazine belongs to Central Nervous System.

Niveau de preuve: Moderate

Pourquoi elle survient

Additive QT prolongation, with possible pharmacodynamic neurotoxic synergy.

Conduite à tenir

Avoid the combination and use a lower-QT-risk antipsychotic. If lithium must be continued, obtain an ECG, check potassium and magnesium, and monitor for neurotoxicity.

Questions à poser à votre pharmacien

  • 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.

Réservé aux membres Pro+

Débloquer la page complète

Créez un compte et lancez un essai Pro+ pour débloquer les conseils complets de prise en charge pour Lithium et Thioridazine, les notes complémentaires, le détail des données probantes et le vérificateur d'interactions pour une ordonnance complète.

  • Full clinical management advice
  • Additional notes
  • Evidence detail
  • Interaction checker for a whole prescription
Créer un compte gratuit Se connecter

Essayez Pro+ gratuitement pendant 14 jours sur le web. Sans carte.

Questions fréquentes

Can I take Lithium with Thioridazine?

MediHelp rates the interaction as contraindicated. Lithium 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. Thioridazine strongly prolongs the QTc interval and can cause torsades de pointes, and lithium can add to QT effects and electrolyte disturbance. Combined use may also raise the risk of neurotoxicity. Thioridazine labeling carries a boxed warning on QT risk and the pair is generally avoided.

How serious is the interaction between Lithium 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 and use a lower-QT-risk antipsychotic. If lithium must be continued, obtain an ECG, check potassium and magnesium, and monitor for neurotoxicity.

What other medicines interact with Lithium?

MediHelp also lists interactions of Lithium with, for example, Vandetanib, Aceclofenac, Acemetacin. The full list is on the Lithium page.

Monographies complètes, posologies et vérificateur d'interactions dans l'application MediHelp

Ouvrez le référentiel complet, vérifiez les interactions entre plusieurs médicaments et utilisez les outils de posologie dans l'application MediHelp.

Télécharger surApp Store Disponible surGoogle Play

Parcourir de A à Z · Interactions médicamenteuses

Télécharger l'app Se connecter