藥物交互作用
Gefitinib + Pantoprazole
嚴重程度: 嚴重
Gefitinib and Pantoprazole: major interaction.
最後更新
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摘要
Gefitinib absorption falls when gastric pH is raised, and acid suppression can lower gefitinib exposure and reduce antitumor effect.
用白話說明這項交互作用的意義
Gefitinib and Pantoprazole 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.
Gefitinib belongs to Oncology; Pantoprazole belongs to Gastrointestinal Tract.
為什麼會發生
Gefitinib is a weak base with pH-dependent solubility, so raised gastric pH reduces its dissolution and absorption.
處置方式
Avoid PPIs where possible. If an acid suppressant is essential, use an H2 blocker or antacid given at staggered times, taking gefitinib at least 6 hours apart from them (12 hours from H2 blockers where labeled).
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?
Pantoprazole 的其他交互作用
Gefitinib 的其他交互作用
常見問題
Can I take Gefitinib with Pantoprazole?
MediHelp rates the interaction as major. Gefitinib and Pantoprazole 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. Gefitinib absorption falls when gastric pH is raised, and acid suppression can lower gefitinib exposure and reduce antitumor effect.
How serious is the interaction between Gefitinib and Pantoprazole?
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 PPIs where possible. If an acid suppressant is essential, use an H2 blocker or antacid given at staggered times, taking gefitinib at least 6 hours apart from them (12 hours from H2 blockers where labeled).
What other medicines interact with Pantoprazole?
MediHelp also lists interactions of Pantoprazole with, for example, Rilpivirine, Acalabrutinib, Atazanavir. The full list is on the Pantoprazole page.
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