Drug interactions
Haloperidol + Sodium sulfate / ?magnesium sulfate / potassium chloride
Severity: Moderate
Haloperidol and Sodium sulfate / ?magnesium sulfate / potassium chloride: moderate interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Oral bowel preparations cause fluid and electrolyte shifts, including low potassium and magnesium, which can increase the QT-prolongation and arrhythmia risk of haloperidol. Dehydration and diarrhea add to this risk.
What this interaction means in plain words
Haloperidol and Sodium sulfate / ?magnesium sulfate / potassium chloride 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.
Why it happens
Bowel-prep induced electrolyte disturbances predispose to haloperidol-related QT prolongation.
What to do
Ensure adequate hydration and check electrolytes in high-risk patients, such as those with heart disease or other QT-prolonging drugs. Consider an ECG if the patient is at high risk.
What to ask your pharmacist
- 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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Other interactions of Haloperidol
- Dofetilide + Haloperidol Contraindicated
- Dronedarone + Haloperidol Contraindicated
- Haloperidol + Ibutilide Contraindicated
- Haloperidol + Levoketoconazole Contraindicated
- Haloperidol + Panobinostat Contraindicated
- Haloperidol + Pimozide Contraindicated
Frequently asked questions
Can I take Haloperidol with Sodium sulfate / ?magnesium sulfate / potassium chloride?
MediHelp rates the interaction as moderate. Haloperidol and Sodium sulfate / ?magnesium sulfate / potassium chloride 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. Oral bowel preparations cause fluid and electrolyte shifts, including low potassium and magnesium, which can increase the QT-prolongation and arrhythmia risk of haloperidol. Dehydration and diarrhea add to this risk.
How serious is the interaction between Haloperidol and Sodium sulfate / ?magnesium sulfate / potassium chloride?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Ensure adequate hydration and check electrolytes in high-risk patients, such as those with heart disease or other QT-prolonging drugs. Consider an ECG if the patient is at high risk.
What other medicines interact with Haloperidol?
MediHelp also lists interactions of Haloperidol with, for example, Dofetilide, Dronedarone, Ibutilide. The full list is on the Haloperidol page.
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