Skip to content

Drug interactions

Formoterol-mometasone + Osilodrostat

Severity: Moderate

Formoterol-mometasone and Osilodrostat: 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

Osilodrostat can prolong the QTc interval and formoterol may also affect QT and lower potassium. The combination may raise the risk of arrhythmia, especially with electrolyte disturbances.

What this interaction means in plain words

Formoterol-mometasone and Osilodrostat 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; Osilodrostat belongs to Endocrine.

Evidence level: Low

Why it happens

Additive QTc prolongation, with formoterol-induced hypokalemia as a contributing factor.

What to do

Obtain a baseline ECG and monitor QTc, potassium and magnesium, correcting abnormalities before and during co-therapy.

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.

Pro+ members

Unlock the full page

Create an account and start a Pro+ trial to unlock the full management advice for Formoterol-mometasone and Osilodrostat, the additional notes, the evidence detail and the whole-prescription interaction checker.

  • Full clinical management advice
  • Additional notes
  • Evidence detail
  • Interaction checker for a whole prescription

Try Pro+ free for 7 days on the web. No card needed.

Frequently asked questions

Can I take Formoterol-mometasone with Osilodrostat?

MediHelp rates the interaction as moderate. Formoterol-mometasone and Osilodrostat 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. Osilodrostat can prolong the QTc interval and formoterol may also affect QT and lower potassium. The combination may raise the risk of arrhythmia, especially with electrolyte disturbances.

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

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Obtain a baseline ECG and monitor QTc, potassium and magnesium, correcting abnormalities before and during co-therapy.

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.

Full monographs, dosing and an interaction checker in the MediHelp app

Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.

Browse A–Z · Drug interactions

Get the app Sign in