Drug interactions
Formoterol-mometasone + Torsemide
Severity: Moderate
Formoterol-mometasone and Torsemide: 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
Formoterol, a beta-2 agonist, and loop diuretics such as torsemide both lower serum potassium, and corticosteroids can add to potassium loss. Hypokalemia may provoke arrhythmias, especially in patients with heart disease or on QT-prolonging drugs.
What this interaction means in plain words
Formoterol-mometasone and Torsemide 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; Torsemide belongs to Cardiovascular.
Why it happens
Additive hypokalemia from beta-2 mediated intracellular potassium shift and diuretic renal potassium loss.
What to do
Monitor serum potassium and magnesium, particularly at start of therapy or with high doses, and replace as needed.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Formoterol-mometasone and Torsemide, 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.
Other interactions of Formoterol-mometasone
Other interactions of Torsemide
Frequently asked questions
Can I take Formoterol-mometasone with Torsemide?
MediHelp rates the interaction as moderate. Formoterol-mometasone and Torsemide 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, a beta-2 agonist, and loop diuretics such as torsemide both lower serum potassium, and corticosteroids can add to potassium loss. Hypokalemia may provoke arrhythmias, especially in patients with heart disease or on QT-prolonging drugs.
How serious is the interaction between Formoterol-mometasone and Torsemide?
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, particularly at start of therapy or with high doses, and replace as needed.
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.
