藥物交互作用
Methyldopa + Thioridazine
嚴重程度: 嚴重
Methyldopa and Thioridazine: 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
Thioridazine has strong alpha-blocking and sedative activity that can produce marked additive hypotension with methyldopa. Thioridazine also carries a significant risk of QT prolongation, which adds to the concern in patients with cardiovascular disease. The interaction is mainly hemodynamic.
用白話說明這項交互作用的意義
Methyldopa and Thioridazine 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.
Methyldopa belongs to Cardiovascular; Thioridazine belongs to Central Nervous System.
為什麼會發生
Additive hypotension from alpha-1 blockade and central sympatholytic effects, with possible dopaminergic antagonism.
處置方式
Avoid if possible, preferring an antipsychotic with less alpha-blockade and QT risk. If combined, monitor blood pressure and ECG closely.
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?
Methyldopa 的其他交互作用
Thioridazine 的其他交互作用
常見問題
Can I take Methyldopa with Thioridazine?
MediHelp rates the interaction as major. Methyldopa and Thioridazine 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. Thioridazine has strong alpha-blocking and sedative activity that can produce marked additive hypotension with methyldopa. Thioridazine also carries a significant risk of QT prolongation, which adds to the concern in patients with cardiovascular disease. The interaction is mainly hemodynamic.
How serious is the interaction between Methyldopa and Thioridazine?
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 if possible, preferring an antipsychotic with less alpha-blockade and QT risk. If combined, monitor blood pressure and ECG closely.
What other medicines interact with Methyldopa?
MediHelp also lists interactions of Methyldopa with, for example, Tranylcypromine, Iobenguane i, Lofexidine. The full list is on the Methyldopa 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。
