Drug interactions
Formoterol + Potassium citrate
Severity: Minor
Formoterol and Potassium citrate: minor 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 can lower serum potassium through cellular uptake, while potassium citrate supplies potassium. The effects mainly oppose each other, so supplementation may be helpful rather than harmful, though hyperkalemia is possible in renal impairment.
What this interaction means in plain words
Formoterol and Potassium citrate have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Formoterol belongs to Respiratory; Potassium citrate belongs to Gastrointestinal Tract.
Why it happens
Opposing effects on serum potassium: beta2-mediated intracellular shift versus exogenous potassium supply.
What to do
No routine action is needed; monitor serum potassium in patients with renal impairment or on other potassium-raising drugs.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Formoterol and Potassium citrate, 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
- Adagrasib + Formoterol Major
- Amiodarone + Formoterol Major
- Amisulpride + Formoterol Major
- Amitriptyline + Formoterol Major
- Amoxapine + Formoterol Major
- Arformoterol + Formoterol Major
Other interactions of Potassium citrate
Frequently asked questions
Can I take Formoterol with Potassium citrate?
MediHelp rates the interaction as minor. Formoterol and Potassium citrate have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Formoterol can lower serum potassium through cellular uptake, while potassium citrate supplies potassium. The effects mainly oppose each other, so supplementation may be helpful rather than harmful, though hyperkalemia is possible in renal impairment.
How serious is the interaction between Formoterol and Potassium citrate?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No routine action is needed; monitor serum potassium in patients with renal impairment or on other potassium-raising drugs.
What other medicines interact with Formoterol?
MediHelp also lists interactions of Formoterol with, for example, Adagrasib, Amiodarone, Amisulpride. The full list is on the 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.
