Is Potassium Safe with Irbesartan?
Free · No account · based on published sources including NIH ODS, FDA drug labels, and peer-reviewed literature
Avoid unless prescribed and monitored. Check potassium.
Why this interaction occurs
Like all ARBs, Irbesartan reduces aldosterone-mediated potassium excretion through RAAS blockade. Supplemental potassium intake on top of this pharmacological effect substantially increases the risk of serum potassium rising to dangerous levels, leading to cardiac conduction abnormalities.
Evidence
Evidence level: strong.
Data source
Leong et al., JACC 2019; FDA ARB class labeling
Reported safety data
The FDA’s adverse event reporting system (FAERS) has received 39,166 reports mentioning Irbesartan. This reflects reported cases involving the medication in general — not confirmed causation, and not specific to the Irbesartan + supplement combination on this page.
FAERS reports are voluntary and cannot prove that a drug caused an event. Do not use report counts to assess the safety of this specific drug-supplement pair.
Frequently asked questions
Related interactions
All Potassium interactions → · All Irbesartan interactions →
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Educational only — not medical advice.
Always confirm with your doctor or pharmacist.