Interactions médicamenteuses
Clozapine + Darifenacin
Gravité: Majeure
Clozapine and Darifenacin: major 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
Both drugs have anticholinergic activity, and clozapine already causes constipation that can progress to severe gastrointestinal hypomotility or ileus. Adding darifenacin raises the risk of constipation, urinary retention, tachycardia and cognitive effects. Darifenacin may also modestly increase clozapine exposure by CYP2D6 inhibition.
Ce que signifie cette interaction, en termes simples
Clozapine and Darifenacin can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Clozapine belongs to Central Nervous System; Darifenacin belongs to Genitourinary.
Pourquoi elle survient
Additive antimuscarinic effects, with possible CYP2D6 inhibition by darifenacin raising clozapine levels.
Conduite à tenir
Avoid the combination where possible, or monitor bowel function closely and treat constipation early. Review the need for darifenacin and reduce the clozapine dose if toxicity occurs.
Questions à poser à votre pharmacien
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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 Clozapine et Darifenacin, 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
Essayez Pro+ gratuitement pendant 7 jours sur le web. Sans carte.
Autres interactions de Darifenacin
- Atazanavir + Darifenacin Majeure
- Bethanechol + Darifenacin Majeure
- Clarithromycin + Darifenacin Majeure
- Cobicistat + Darifenacin Majeure
- Conivaptan + Darifenacin Majeure
- Darifenacin + Darunavir Majeure
Autres interactions de Clozapine
- Clozapine + Deferiprone Contre-indiquée
- Clozapine + Irinotecan Contre-indiquée
- Clozapine + Pimozide Contre-indiquée
- Clozapine + Thioridazine Contre-indiquée
- Acalabrutinib + Clozapine Majeure
- Adagrasib + Clozapine Majeure
Questions fréquentes
Can I take Clozapine with Darifenacin?
MediHelp rates the interaction as major. Clozapine and Darifenacin can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Both drugs have anticholinergic activity, and clozapine already causes constipation that can progress to severe gastrointestinal hypomotility or ileus. Adding darifenacin raises the risk of constipation, urinary retention, tachycardia and cognitive effects. Darifenacin may also modestly increase clozapine exposure by CYP2D6 inhibition.
How serious is the interaction between Clozapine and Darifenacin?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination where possible, or monitor bowel function closely and treat constipation early. Review the need for darifenacin and reduce the clozapine dose if toxicity occurs.
What other medicines interact with Darifenacin?
MediHelp also lists interactions of Darifenacin with, for example, Atazanavir, Bethanechol, Clarithromycin. The full list is on the Darifenacin 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.
