Drug interactions
Formoterol-mometasone + Trifluoperazine
Severity: Moderate
Formoterol-mometasone and Trifluoperazine: 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
Trifluoperazine can prolong the QT interval, and formoterol may also prolong QT and lower potassium. Together they may increase the risk of ventricular arrhythmia.
What this interaction means in plain words
Formoterol-mometasone and Trifluoperazine 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
Additive QT interval prolongation.
What to do
Check ECG and potassium in patients with cardiac risk factors. Correct electrolyte abnormalities.
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
Frequently asked questions
Can I take Formoterol-mometasone with Trifluoperazine?
MediHelp rates the interaction as moderate. Formoterol-mometasone and Trifluoperazine 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. Trifluoperazine can prolong the QT interval, and formoterol may also prolong QT and lower potassium. Together they may increase the risk of ventricular arrhythmia.
How serious is the interaction between Formoterol-mometasone and Trifluoperazine?
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 ECG and potassium in patients with cardiac risk factors. Correct electrolyte abnormalities.
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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