Drug interactions
Fluconazole + Formoterol-mometasone
Severity: Moderate
Fluconazole and Formoterol-mometasone: 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
Fluconazole can prolong the QT interval, particularly at higher doses. Formoterol may add to arrhythmia risk through hypokalemia.
What this interaction means in plain words
Fluconazole and Formoterol-mometasone 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.
Fluconazole belongs to Anti Fungals; Formoterol-mometasone belongs to Respiratory.
Why it happens
Additive QT prolongation with beta-2 mediated hypokalemia.
What to do
Monitor ECG and potassium in patients with other QT risk factors or on high fluconazole doses.
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 Fluconazole
- Dihydroergotamine intranasal + Fluconazole Contraindicated
- Dihydroergotamine + Fluconazole Contraindicated
- Dofetilide + Fluconazole Contraindicated
- Dronedarone + Fluconazole Contraindicated
- Erythromycin + Fluconazole Contraindicated
- Flibanserin + Fluconazole Contraindicated
Frequently asked questions
Can I take Fluconazole with Formoterol-mometasone?
MediHelp rates the interaction as moderate. Fluconazole and Formoterol-mometasone 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. Fluconazole can prolong the QT interval, particularly at higher doses. Formoterol may add to arrhythmia risk through hypokalemia.
How serious is the interaction between Fluconazole and Formoterol-mometasone?
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 potassium in patients with other QT risk factors or on high fluconazole doses.
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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