Drug interactions
Moexipril + Potassium phosphates
Severity: Major
Moexipril and Potassium phosphates: major interaction.
Last updated Sources: US FDA label
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
ACE inhibitors reduce aldosterone-mediated potassium excretion, and intravenous potassium phosphates add a direct potassium load. Together they can produce clinically significant hyperkalemia with risk of cardiac arrhythmia, especially in renal impairment.
What this interaction means in plain words
Moexipril and Potassium phosphates 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.
Why it happens
Additive effect: ACE inhibition decreases aldosterone-dependent renal potassium excretion while potassium phosphates supply exogenous potassium.
What to do
Avoid if possible; if IV potassium phosphates are required, monitor serum potassium and renal function closely and reduce the infusion rate or dose as needed.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Moexipril and Potassium phosphates, 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.
References
Other interactions of Moexipril
- Aliskiren + Moexipril Contraindicated
- Moexipril + Protein a column Contraindicated
- Moexipril + Sacubitril / valsartan Contraindicated
- Moexipril + Sacubitril-valsartan Contraindicated
- Amifostine + Moexipril Major
- Amiloride + Moexipril Major
Frequently asked questions
Can I take Moexipril with Potassium phosphates?
MediHelp rates the interaction as major. Moexipril and Potassium phosphates 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. ACE inhibitors reduce aldosterone-mediated potassium excretion, and intravenous potassium phosphates add a direct potassium load. Together they can produce clinically significant hyperkalemia with risk of cardiac arrhythmia, especially in renal impairment.
How serious is the interaction between Moexipril and Potassium phosphates?
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 if possible; if IV potassium phosphates are required, monitor serum potassium and renal function closely and reduce the infusion rate or dose as needed.
What other medicines interact with Moexipril?
MediHelp also lists interactions of Moexipril with, for example, Aliskiren, Protein a column, Sacubitril / valsartan. The full list is on the Moexipril 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.
