Skip to content

Drug interactions

Budesonide-formoterol + Iloperidone

Severity: Major

Budesonide-formoterol and Iloperidone: major 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

Iloperidone prolongs the QT interval and formoterol may add to this effect. Coadministration increases the risk of torsades de pointes, especially with hypokalemia or cardiac disease.

What this interaction means in plain words

Budesonide-formoterol and Iloperidone can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.

Budesonide-formoterol belongs to Respiratory; Iloperidone belongs to Central Nervous System.

Evidence level: Moderate

Why it happens

Additive QT prolongation, with formoterol-induced hypokalemia potentially increasing risk.

What to do

Avoid the combination in patients with QT risk factors; otherwise monitor ECG and keep potassium and magnesium in the normal range.

What to ask your pharmacist

  • Does the benefit of taking both outweigh the risk in my case?
  • Do I need any blood test, ECG or other check while on both?
  • What early warning signs should I watch for, and what should I do if they appear?

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 Budesonide-formoterol and Iloperidone, 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 Budesonide-formoterol with Iloperidone?

MediHelp rates the interaction as major. Budesonide-formoterol and Iloperidone can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Iloperidone prolongs the QT interval and formoterol may add to this effect. Coadministration increases the risk of torsades de pointes, especially with hypokalemia or cardiac disease.

How serious is the interaction between Budesonide-formoterol and Iloperidone?

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination in patients with QT risk factors; otherwise monitor ECG and keep potassium and magnesium in the normal range.

What other medicines interact with Budesonide-formoterol?

MediHelp also lists interactions of Budesonide-formoterol with, for example, Adagrasib, Amiodarone, Amisulpride. The full list is on the Budesonide-formoterol 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