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Drug interactions

Formoterol-mometasone + Gentamicin

Severity: Moderate

Formoterol-mometasone and Gentamicin: 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

Both drugs can lower serum potassium, and gentamicin can also cause renal magnesium wasting. The combined electrolyte disturbance may predispose to arrhythmia and muscle weakness.

What this interaction means in plain words

Formoterol-mometasone and Gentamicin 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; Gentamicin belongs to Anti Bacterial.

Evidence level: Low

Why it happens

Formoterol drives potassium into cells, while aminoglycoside nephrotoxicity causes renal potassium and magnesium loss, giving additive electrolyte depletion.

What to do

Monitor serum potassium and magnesium during aminoglycoside therapy and replace deficits promptly.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Formoterol-mometasone with Gentamicin?

MediHelp rates the interaction as moderate. Formoterol-mometasone and Gentamicin 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. Both drugs can lower serum potassium, and gentamicin can also cause renal magnesium wasting. The combined electrolyte disturbance may predispose to arrhythmia and muscle weakness.

How serious is the interaction between Formoterol-mometasone and Gentamicin?

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 serum potassium and magnesium during aminoglycoside therapy and replace deficits promptly.

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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