Interações medicamentosas
Clarithromycin + Darifenacin
Gravidade: Grave
Clarithromycin and Darifenacin: major interaction.
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Para profissionais de saúde — apenas referência. Esta página é um resumo breve, não é aconselhamento médico nem substitui a bula oficial ou o julgamento clínico. Verifique sempre antes de prescrever ou dispensar.
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Resumo
Clarithromycin is a strong CYP3A4 inhibitor and increases darifenacin exposure. This raises the risk of anticholinergic adverse effects.
O que esta interação significa em palavras simples
Clarithromycin 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.
Clarithromycin belongs to Anti Bacterial; Darifenacin belongs to Genitourinary.
Por que acontece
Strong CYP3A4 inhibition by clarithromycin reduces darifenacin clearance.
O que fazer
Limit darifenacin to 7.5 mg daily during clarithromycin, or use an alternative macrolide such as azithromycin. Monitor for dry mouth, constipation, urinary retention and cognitive effects.
O que perguntar ao farmacêutico
- 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?
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Outras interações de Darifenacin
- Atazanavir + Darifenacin Grave
- Bethanechol + Darifenacin Grave
- Clozapine + Darifenacin Grave
- Cobicistat + Darifenacin Grave
- Conivaptan + Darifenacin Grave
- Darifenacin + Darunavir Grave
Outras interações de Clarithromycin
- Astemizole + Clarithromycin Contraindicada
- Avanafil + Clarithromycin Contraindicada
- Cisapride + Clarithromycin Contraindicada
- Clarithromycin + Colchicine Contraindicada
- Clarithromycin + Conivaptan Contraindicada
- Clarithromycin + Dihydroergotamine Contraindicada
Perguntas frequentes
Can I take Clarithromycin with Darifenacin?
MediHelp rates the interaction as major. Clarithromycin 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. Clarithromycin is a strong CYP3A4 inhibitor and increases darifenacin exposure. This raises the risk of anticholinergic adverse effects.
How serious is the interaction between Clarithromycin 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: Limit darifenacin to 7.5 mg daily during clarithromycin, or use an alternative macrolide such as azithromycin. Monitor for dry mouth, constipation, urinary retention and cognitive effects.
What other medicines interact with Darifenacin?
MediHelp also lists interactions of Darifenacin with, for example, Atazanavir, Bethanechol, Clozapine. The full list is on the Darifenacin page.
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