Drug interactions
Formoterol-mometasone + Terbutaline
Severity: Moderate
Formoterol-mometasone and Terbutaline: 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
Using two beta-2 agonists together adds to their systemic effects, including tachycardia, tremor, palpitations, raised blood pressure and lowering of serum potassium. The risk is greatest with high doses or in patients with cardiac disease.
What this interaction means in plain words
Formoterol-mometasone and Terbutaline 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; Terbutaline belongs to Respiratory.
Why it happens
Additive beta-2 adrenergic receptor stimulation causes cardiovascular stimulation and intracellular potassium shift.
What to do
Avoid routine concurrent use of two beta-agonists; if unavoidable, monitor heart rate, blood pressure and serum potassium. Review the need for the additional agent.
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 Terbutaline
Frequently asked questions
Can I take Formoterol-mometasone with Terbutaline?
MediHelp rates the interaction as moderate. Formoterol-mometasone and Terbutaline 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. Using two beta-2 agonists together adds to their systemic effects, including tachycardia, tremor, palpitations, raised blood pressure and lowering of serum potassium. The risk is greatest with high doses or in patients with cardiac disease.
How serious is the interaction between Formoterol-mometasone and Terbutaline?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid routine concurrent use of two beta-agonists; if unavoidable, monitor heart rate, blood pressure and serum potassium. Review the need for the additional agent.
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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