Drug interactions
Haloperidol + Metaproterenol
Severity: Minor
Haloperidol and Metaproterenol: minor 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
No well-defined interaction exists. Beta-agonists can lower potassium and increase heart rate, which could slightly add to QT risk with haloperidol.
What this interaction means in plain words
Haloperidol and Metaproterenol have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Possible additive QT risk through beta-agonist-induced hypokalemia and tachycardia; not well established.
What to do
No routine action is needed; check potassium and ECG in patients with other QT risk factors or on high doses.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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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 Metaproterenol?
MediHelp rates the interaction as minor. Haloperidol and Metaproterenol have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. No well-defined interaction exists. Beta-agonists can lower potassium and increase heart rate, which could slightly add to QT risk with haloperidol.
How serious is the interaction between Haloperidol and Metaproterenol?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No routine action is needed; check potassium and ECG in patients with other QT risk factors or on high doses.
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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