藥物交互作用
Iobenguane i + Methyldopa
嚴重程度: 嚴重
Iobenguane i and Methyldopa: major interaction.
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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
Methyldopa interferes with catecholamine handling and may reduce uptake of iobenguane into target cells. This can lower its diagnostic or therapeutic efficacy.
用白話說明這項交互作用的意義
Iobenguane i and Methyldopa 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.
為什麼會發生
Depletion or false-transmitter replacement of catecholamine stores and altered neuronal uptake reduce iobenguane accumulation.
處置方式
Discontinue methyldopa for at least five half-lives before iobenguane dosimetry or therapy and do not resume until at least 7 days after each dose, using an alternative antihypertensive meanwhile.
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
常見問題
Can I take Iobenguane i with Methyldopa?
MediHelp rates the interaction as major. Iobenguane i and Methyldopa 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 interferes with catecholamine handling and may reduce uptake of iobenguane into target cells. This can lower its diagnostic or therapeutic efficacy.
How serious is the interaction between Iobenguane i and Methyldopa?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Discontinue methyldopa for at least five half-lives before iobenguane dosimetry or therapy and do not resume until at least 7 days after each dose, using an alternative antihypertensive meanwhile.
What other medicines interact with Methyldopa?
MediHelp also lists interactions of Methyldopa with, for example, Tranylcypromine, Lofexidine, Pexidartinib. The full list is on the Methyldopa page.
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