Potassium citrate and ACE inhibitor: interaction, severity and spacing
Potassium citrate and ACE inhibitor interact because aCE inhibitors reduce aldosterone-driven potassium excretion. Adding potassium supplements can push serum potassium into the hyperkalaemic range, which risks cardiac arrhythmia. Take them with care. Severe risk.
The interaction in detail
| Pair | Potassium citrate and ACE inhibitor |
|---|---|
| Type | Nutrient–drug interaction |
| Severity | Severe |
| Required spacing | None specified |
| Onset | At the time of dosing |
Mechanism
ACE inhibitors reduce aldosterone-driven potassium excretion. Adding potassium supplements can push serum potassium into the hyperkalaemic range, which risks cardiac arrhythmia.
What to do
Do not supplement potassium without your prescriber’s approval on an ACE inhibitor. Get potassium and creatinine checked.
How to fit both into one day
Take at a consistent time each day. Do not add potassium supplements without checking potassium and kidney function.
Putting Potassium citrate in the morning and ACE inhibitor in the morning satisfies the 0-hour separation without disrupting either one's absorption window.