Interações medicamentosas
Clarithromycin + Selumetinib
Gravidade: Grave
Clarithromycin and Selumetinib: major interaction.
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Resumo
Clarithromycin may increase selumetinib exposure, which can intensify adverse effects such as gastrointestinal toxicity, rash, cardiomyopathy and ocular toxicity.
O que esta interação significa em palavras simples
Clarithromycin and Selumetinib 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; Selumetinib belongs to Oncology.
Por que acontece
Clarithromycin inhibits CYP3A4, reducing selumetinib metabolism.
O que fazer
Prefer a non-CYP3A4-inhibiting antibiotic. If necessary, reduce the selumetinib dose as per labeling and resume the prior dose after about 3 half-lives of clarithromycin.
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 Clarithromycin
- Astemizole + Clarithromycin Contraindicada
- Avanafil + Clarithromycin Contraindicada
- Cisapride + Clarithromycin Contraindicada
- Clarithromycin + Colchicine Contraindicada
- Clarithromycin + Conivaptan Contraindicada
- Clarithromycin + Dihydroergotamine Contraindicada
Outras interações de Selumetinib
Perguntas frequentes
Can I take Clarithromycin with Selumetinib?
MediHelp rates the interaction as major. Clarithromycin and Selumetinib 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 may increase selumetinib exposure, which can intensify adverse effects such as gastrointestinal toxicity, rash, cardiomyopathy and ocular toxicity.
How serious is the interaction between Clarithromycin and Selumetinib?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Prefer a non-CYP3A4-inhibiting antibiotic. If necessary, reduce the selumetinib dose as per labeling and resume the prior dose after about 3 half-lives of clarithromycin.
What other medicines interact with Clarithromycin?
MediHelp also lists interactions of Clarithromycin with, for example, Astemizole, Avanafil, Cisapride. The full list is on the Clarithromycin page.
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