藥物交互作用
Dofetilide + Fluconazole
嚴重程度: 禁忌併用
Dofetilide and Fluconazole: contraindicated interaction.
最後更新
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摘要
Both drugs prolong the QT interval, and fluconazole may also reduce dofetilide elimination, raising its levels. This markedly increases the risk of torsades de pointes and fatal ventricular arrhythmia.
用白話說明這項交互作用的意義
Dofetilide and Fluconazole 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.
Dofetilide belongs to Cardiovascular; Fluconazole belongs to Anti Fungals.
為什麼會發生
Additive QT prolongation, with possible fluconazole-related increase in dofetilide exposure via CYP3A4 and renal transport inhibition.
處置方式
Avoid the combination; use a non-QT-prolonging antifungal. If systemic azole therapy is essential, consider an alternative antiarrhythmic.
可向藥師詢問的問題
- 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?
Fluconazole 的其他交互作用
Dofetilide 的其他交互作用
常見問題
Can I take Dofetilide with Fluconazole?
MediHelp rates the interaction as contraindicated. Dofetilide and Fluconazole 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. Both drugs prolong the QT interval, and fluconazole may also reduce dofetilide elimination, raising its levels. This markedly increases the risk of torsades de pointes and fatal ventricular arrhythmia.
How serious is the interaction between Dofetilide and Fluconazole?
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; use a non-QT-prolonging antifungal. If systemic azole therapy is essential, consider an alternative antiarrhythmic.
What other medicines interact with Fluconazole?
MediHelp also lists interactions of Fluconazole with, for example, Dihydroergotamine intranasal, Dihydroergotamine, Dronedarone. The full list is on the Fluconazole page.
在 MediHelp App 中取得完整藥品專論、劑量資訊與交互作用檢查
在 MediHelp App 中開啟完整參考資料、檢查多種藥物間的交互作用，並使用劑量工具。
