藥物交互作用
Amiodarone + Digoxin
嚴重程度: 嚴重
Amiodarone and Digoxin: major interaction.
最後更新 來源: US FDA label
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摘要
Amiodarone increases serum digoxin concentrations, often substantially, and may lead to digoxin toxicity. Additive effects on sinus and AV nodal function raise the risk of bradycardia and heart block. The interaction develops over days to weeks and can persist because of amiodarone's long half-life.
用白話說明這項交互作用的意義
Amiodarone and Digoxin 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.
Amiodarone belongs to Cardiovascular; Digoxin belongs to Cardiovascular.
為什麼會發生
Amiodarone inhibits P-glycoprotein and reduces renal and non-renal digoxin clearance, with additive pharmacodynamic effects on cardiac conduction.
處置方式
Reduce the digoxin dose by roughly one-third to one-half when starting amiodarone, or consider stopping digoxin if no longer necessary. Measure serum digoxin levels and review after one to two weeks, and monitor heart rate and ECG.
可向藥師詢問的問題
- 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?
參考資料
Digoxin 的其他交互作用
Amiodarone 的其他交互作用
常見問題
Can I take Amiodarone with Digoxin?
MediHelp rates the interaction as major. Amiodarone and Digoxin 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. Amiodarone increases serum digoxin concentrations, often substantially, and may lead to digoxin toxicity. Additive effects on sinus and AV nodal function raise the risk of bradycardia and heart block. The interaction develops over days to weeks and can persist because of amiodarone's long half-life.
How serious is the interaction between Amiodarone and Digoxin?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Reduce the digoxin dose by roughly one-third to one-half when starting amiodarone, or consider stopping digoxin if no longer necessary. Measure serum digoxin levels and review after one to two weeks, and monitor heart rate and ECG.
What other medicines interact with Digoxin?
MediHelp also lists interactions of Digoxin with, for example, Lily of the valley, Squill, Adagrasib. The full list is on the Digoxin page.
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