Drug interactions
Formoterol-mometasone + Voriconazole
Severity: Moderate
Formoterol-mometasone and Voriconazole: 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
Voriconazole and formoterol can each prolong the QTc interval, so concurrent use may increase the risk of torsades de pointes. Formoterol-related hypokalemia can add to this risk.
What this interaction means in plain words
Formoterol-mometasone and Voriconazole 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; Voriconazole belongs to Anti Fungals.
Why it happens
Additive QT prolongation, potentiated by beta2-agonist-induced hypokalemia.
What to do
Monitor ECG and correct potassium and magnesium before and during combined therapy, particularly with high formoterol doses or underlying heart disease. Watch for palpitations or syncope.
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 Voriconazole
- Avanafil + Voriconazole Contraindicated
- Butabarbital + Voriconazole Contraindicated
- Carbamazepine + Voriconazole Contraindicated
- Conivaptan + Voriconazole Contraindicated
- Dihydroergotamine intranasal + Voriconazole Contraindicated
- Dihydroergotamine + Voriconazole Contraindicated
Frequently asked questions
Can I take Formoterol-mometasone with Voriconazole?
MediHelp rates the interaction as moderate. Formoterol-mometasone and Voriconazole 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. Voriconazole and formoterol can each prolong the QTc interval, so concurrent use may increase the risk of torsades de pointes. Formoterol-related hypokalemia can add to this risk.
How serious is the interaction between Formoterol-mometasone and Voriconazole?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor ECG and correct potassium and magnesium before and during combined therapy, particularly with high formoterol doses or underlying heart disease. Watch for palpitations or syncope.
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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