Drug interactions
Formoterol-mometasone + Levalbuterol
Severity: Moderate
Formoterol-mometasone and Levalbuterol: 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
Levalbuterol and formoterol are both beta-2 agonists, so combined use adds to tachycardia, tremor, palpitations and hypokalemia. Excess beta-agonist exposure raises the risk of arrhythmias, particularly in patients with heart disease.
What this interaction means in plain words
Formoterol-mometasone and Levalbuterol 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 beta-2 adrenergic receptor stimulation.
What to do
Monitor heart rate and serum potassium and avoid routine additional use of levalbuterol beyond rescue need. Review asthma control if rescue use increases.
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 Levalbuterol?
MediHelp rates the interaction as moderate. Formoterol-mometasone and Levalbuterol 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. Levalbuterol and formoterol are both beta-2 agonists, so combined use adds to tachycardia, tremor, palpitations and hypokalemia. Excess beta-agonist exposure raises the risk of arrhythmias, particularly in patients with heart disease.
How serious is the interaction between Formoterol-mometasone and Levalbuterol?
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 heart rate and serum potassium and avoid routine additional use of levalbuterol beyond rescue need. Review asthma control if rescue use increases.
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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