NutriStack
Ibuprofen and Potassium, a caution.
Ibuprofen can reduce kidney potassium excretion, and potassium supplements can push serum potassium higher. This is most important if you have kidney disease, diabetes, dehydration, older age, or also take an ACE inhibitor, ARB, or potassium-sparing diuretic. Severe hyperkalemia can cause weakness, palpitations, dangerous arrhythmias, or collapse.
One pair, every claim cited. The two substances, the type, the mechanism, the recommendation, and the primary literature.
Same shape as the other 1,729 pairs in the public database.
From the interaction database
What the row says.
Every entry follows the same shape: what is happening, the mechanism, the recommendation, and the primary literature.
At a glance
- Pair type
- Caution
- Evidence (highest tier)
- Moderate
- Source citations
- 2 sources
- Stack Score effect
- −5 to your Stack Score (per scored caution row).
- Scope
- Supplement × Prescription
- Last verified
- May 30, 2026
Caution · Moderate evidence
Caution
What is happening. Ibuprofen can reduce kidney potassium excretion, and potassium supplements can push serum potassium higher. This is most important if you have kidney disease, diabetes, dehydration, older age, or also take an ACE inhibitor, ARB, or potassium-sparing diuretic. Severe hyperkalemia can cause weakness, palpitations, dangerous arrhythmias, or collapse.
Mechanism. NSAID inhibition of renal prostaglandins can lower renin and aldosterone activity and reduce renal potassium secretion. Supplemental potassium adds directly to the potassium load, making hyperkalemia more likely when renal excretion is impaired.
Recommendation. Do not use potassium supplements with repeated ibuprofen dosing unless your clinician has advised it. If the combination is necessary, check kidney function and serum potassium, and avoid ibuprofen during dehydration, vomiting, diarrhea, or poor fluid intake.
Sources (2)
- Kim GH. Renal effects of prostaglandins and cyclooxygenase-2 inhibitors. Electrolyte Blood Press. 2008;6(1):35-41. PMID 24459520
- John SK, Rangan Y, Block CA, Koff MD. Life-threatening hyperkalemia from nutritional supplements: uncommon or undiagnosed? Am J Emerg Med. 2011;29(9):1237.e1-1237.e2. PMID 21075579
Stack Score
How this pair moves the number.
Effect on the composite score
If both Ibuprofen and Potassium are in the same stack, this pair applies −5 to your Stack Score (per scored caution row).
The full algorithm, the clamping rules, and four worked stacks are documented at /methodology/stack-score.
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