Drug interactions
Formoterol-mometasone + Haloperidol
Severity: Moderate
Formoterol-mometasone and Haloperidol: 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
Haloperidol can prolong QT, especially at high doses or intravenously. Formoterol may add to arrhythmia risk through hypokalemia and tachycardia.
What this interaction means in plain words
Formoterol-mometasone and Haloperidol 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.
Formoterol-mometasone belongs to Respiratory; Haloperidol belongs to Central Nervous System.
Why it happens
Additive QT prolongation with beta-2 mediated hypokalemia.
What to do
Check baseline ECG and electrolytes in at-risk patients and monitor QTc, using the lowest effective haloperidol dose.
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 Formoterol-mometasone
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 Formoterol-mometasone with Haloperidol?
MediHelp rates the interaction as moderate. Formoterol-mometasone and Haloperidol 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. Haloperidol can prolong QT, especially at high doses or intravenously. Formoterol may add to arrhythmia risk through hypokalemia and tachycardia.
How serious is the interaction between Formoterol-mometasone and Haloperidol?
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 baseline ECG and electrolytes in at-risk patients and monitor QTc, using the lowest effective haloperidol dose.
What other medicines interact with Formoterol-mometasone?
MediHelp also lists interactions of Formoterol-mometasone with, for example, Amiodarone, Amisulpride, Amoxapine. The full list is on the Formoterol-mometasone page.
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