Interações medicamentosas
Conivaptan + Ketoconazole
Gravidade: Contraindicada
Conivaptan and Ketoconazole: contraindicated interaction.
Última atualização Fontes: US FDA label
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.
O conteúdo clínico desta página está disponível apenas em inglês.
Resumo
Ketoconazole markedly increases conivaptan exposure and the combination is contraindicated in labeling. Excess conivaptan can cause overly rapid rise in serum sodium, with risk of osmotic demyelination, as well as hypotension and infusion-site reactions. Patients with hyponatremia are most at risk.
O que esta interação significa em palavras simples
Conivaptan and Ketoconazole 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.
Por que acontece
Ketoconazole is a strong CYP3A4 inhibitor, and conivaptan is a CYP3A4 substrate, so clearance falls and exposure increases.
O que fazer
Do not use together. If an azole antifungal is needed, consider one without strong CYP3A4 inhibition, or select alternative hyponatremia therapy.
O que perguntar ao farmacêutico
- 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?
Para assinantes do Pro+
Desbloqueie a página completa
Crie uma conta e comece um teste do Pro+ para desbloquear a orientação completa de conduta para Conivaptan e Ketoconazole, as notas adicionais, os detalhes da evidência e o verificador de interações para uma prescrição completa.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Experimente o Pro+ grátis por 14 dias na web. Sem cartão.
Referências
Outras interações de Ketoconazole
- Alfuzosin + Ketoconazole Contraindicada
- Alprazolam + Ketoconazole Contraindicada
- Avanafil + Ketoconazole Contraindicada
- Dihydroergotamine intranasal + Ketoconazole Contraindicada
- Dihydroergotamine + Ketoconazole Contraindicada
- Disopyramide + Ketoconazole Contraindicada
Perguntas frequentes
Can I take Conivaptan with Ketoconazole?
MediHelp rates the interaction as contraindicated. Conivaptan and Ketoconazole 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. Ketoconazole markedly increases conivaptan exposure and the combination is contraindicated in labeling. Excess conivaptan can cause overly rapid rise in serum sodium, with risk of osmotic demyelination, as well as hypotension and infusion-site reactions. Patients with hyponatremia are most at risk.
How serious is the interaction between Conivaptan and Ketoconazole?
MediHelp rates it contraindicated, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Do not use together. If an azole antifungal is needed, consider one without strong CYP3A4 inhibition, or select alternative hyponatremia therapy.
What other medicines interact with Ketoconazole?
MediHelp also lists interactions of Ketoconazole with, for example, Alfuzosin, Alprazolam, Avanafil. The full list is on the Ketoconazole page.
Monografias completas, posologia e verificador de interações no app MediHelp
Abra a referência completa, verifique interações entre vários medicamentos e use as ferramentas de posologia no app MediHelp.
