Interactions médicamenteuses
Domperidone + Lansoprazole
Gravité: Modérée
Domperidone and Lansoprazole: moderate interaction.
Dernière mise à jour Sources: US FDA label
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Résumé
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.
Ce que signifie cette interaction, en termes simples
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.
Pourquoi elle survient
Pharmacodynamic and indirect: PPI-induced hypomagnesemia (reduced intestinal magnesium absorption) lowers the repolarisation reserve, potentiating the QT-prolonging hERG-blocking effect of domperidone.
Conduite à tenir
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).
Questions à poser à votre pharmacien
- 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?
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Références
- 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
Autres interactions de Domperidone
- Azithromycin + Domperidone Contre-indiquée
- Domperidone + Erythromycin Contre-indiquée
- Dexlansoprazole + Domperidone Modérée
- Domperidone + Pantoprazole Modérée
- Domperidone + Polyethylene Glycol 3350 Modérée
- Domperidone + Rabeprazole Modérée
Autres interactions de Lansoprazole
- Lansoprazole + Mavacamten Contre-indiquée
- Lansoprazole + Rilpivirine Contre-indiquée
- Acalabrutinib + Lansoprazole Majeure
- Atazanavir + Lansoprazole Majeure
- Dacomitinib + Lansoprazole Majeure
- Dasatinib + Lansoprazole Majeure
Questions fréquentes
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.
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