相互作用
Domperidone + Lansoprazole
重症度: 中等度
Domperidone and Lansoprazole: moderate interaction.
最終更新日 出典: US FDA label
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概要
Long-term lansoprazole use can cause hypomagnesemia, and low magnesium (often with low potassium) increases susceptibility to QT prolongation and torsades de pointes with domperidone. The risk is mainly seen with prolonged PPI therapy and is greatest in older patients, those on diuretics or digoxin, and those with structural heart disease or other QT-prolonging drugs. The interaction is indirect and uncommon but potentially serious.
この相互作用をわかりやすく説明すると
Domperidone and Lansoprazole can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Domperidone belongs to Gastrointestinal Tract; Lansoprazole belongs to Gastrointestinal Tract.
なぜ起こるのか
Pharmacodynamic and indirect: PPI-induced hypomagnesemia (reduced intestinal magnesium absorption) lowers the repolarisation reserve, potentiating the QT-prolonging hERG-blocking effect of domperidone.
対処法
Check magnesium and potassium before starting domperidone in patients on long-term lansoprazole, and correct deficits. Use the lowest effective domperidone dose for the shortest time (labelling advises a maximum of 30 mg/day and about one week for nausea/vomiting).
薬剤師に尋ねること
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
Pro+会員向け
ページ全体を見る
アカウントを作成してPro+トライアルを始めると、DomperidoneとLansoprazoleの臨床対応の詳細なアドバイス、追加の注記、エビデンスの詳細、処方全体を対象とした相互作用チェッカーを利用できます。
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
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参考文献
- Prevacid (lansoprazole) Prescribing Information - Warnings: Hypomagnesemia — FDA Label
- Domperidone - Summary of Product Characteristics: Cardiac effects and QT prolongation — EMA SmPC
- PRAC recommendation: Domperidone-containing medicines - restricted use (2014) — EMA
Domperidoneのその他の相互作用
Lansoprazoleのその他の相互作用
よくある質問
Can I take Domperidone with Lansoprazole?
MediHelp rates the interaction as moderate. Domperidone and Lansoprazole can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Long-term lansoprazole use can cause hypomagnesemia, and low magnesium (often with low potassium) increases susceptibility to QT prolongation and torsades de pointes with domperidone. The risk is mainly seen with prolonged PPI therapy and is greatest in older patients, those on diuretics or digoxin, and those with structural heart disease or other QT-prolonging drugs. The interaction is indirect and uncommon but potentially serious.
How serious is the interaction between Domperidone and Lansoprazole?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Check magnesium and potassium before starting domperidone in patients on long-term lansoprazole, and correct deficits. Use the lowest effective domperidone dose for the shortest time (labelling advises a maximum of 30 mg/day and about one week for nausea/vomiting).
What other medicines interact with Domperidone?
MediHelp also lists interactions of Domperidone with, for example, Azithromycin, Erythromycin, Dexlansoprazole. The full list is on the Domperidone page.
完全なモノグラフ、用量、相互作用チェッカーはMediHelpアプリで
MediHelpアプリで、完全なリファレンスを開き、複数薬剤の相互作用をチェックし、用量ツールを利用できます。
