藥物交互作用
Clonidine + Guanfacine
嚴重程度: 嚴重
Clonidine and Guanfacine: major interaction.
最後更新
僅供醫療專業人員參考。本頁為簡要摘要，並非醫療建議，亦不能取代官方仿單或臨床判斷。開立處方或調劑前請務必核實。
本頁的臨床內容僅提供英文版。
摘要
Both are central alpha-2 adrenergic agonists, so combining them duplicates therapy and increases the risk of hypotension, bradycardia and sedation. Patients with conduction disease may be at greater risk of heart block.
用白話說明這項交互作用的意義
Clonidine and Guanfacine 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.
Clonidine belongs to Cardiovascular; Guanfacine belongs to Cardiovascular.
為什麼會發生
Additive central alpha-2 agonism reduces sympathetic outflow, causing pharmacodynamic synergism.
處置方式
Avoid using both together unless there is a clear indication; if used, monitor heart rate, blood pressure and sedation closely. Taper one agent gradually when stopping to avoid rebound hypertension.
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?
Clonidine 的其他交互作用
Guanfacine 的其他交互作用
常見問題
Can I take Clonidine with Guanfacine?
MediHelp rates the interaction as major. Clonidine and Guanfacine 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. Both are central alpha-2 adrenergic agonists, so combining them duplicates therapy and increases the risk of hypotension, bradycardia and sedation. Patients with conduction disease may be at greater risk of heart block.
How serious is the interaction between Clonidine and Guanfacine?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid using both together unless there is a clear indication; if used, monitor heart rate, blood pressure and sedation closely. Taper one agent gradually when stopping to avoid rebound hypertension.
What other medicines interact with Clonidine?
MediHelp also lists interactions of Clonidine with, for example, Acebutolol, Amifostine, Amiodarone. The full list is on the Clonidine 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。
