NutriStack
Furosemide and Potassium, a synergy.
Furosemide is a potent loop diuretic that can cause clinically important potassium wasting. Severe hypokalemia can be life-threatening, but potassium replacement dose should be individualized from labs and clinical context.
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
- Substances
- Furosemide and Potassium
- Pair type
- Synergy
- Evidence (highest tier)
- Strong
- Source citations
- 4 sources
- Stack Score effect
- +2 to your Stack Score (per scored synergy row).
- Scope
- Supplement × Prescription
- Last verified
- May 30, 2026
Synergy · Strong evidence
Synergy
What is happening. Furosemide is a potent loop diuretic that can cause clinically important potassium wasting. Severe hypokalemia can be life-threatening, but potassium replacement dose should be individualized from labs and clinical context.
Mechanism. Furosemide inhibits the Na+/K+/2Cl- cotransporter (NKCC2) in the thick ascending limb of Henle. This massively increases sodium delivery to the collecting duct, where ENaC-mediated sodium reabsorption is coupled to potassium secretion via ROMK, causing profound potassium loss.
Recommendation. Monitor potassium during furosemide therapy, especially after dose changes or higher-dose use. Use potassium only as prescribed or lab-guided; do not infer a dose from the app.
Sources (4)
- Brater DC. Diuretic therapy. N Engl J Med. 1998;339(6):387-395. PMID 9691107
- Filippini T, Naska A, Kasdagli MI et al.. Potassium Intake and Blood Pressure: A Dose-Response Meta-Analysis of Randomized Controlled Trials. Journal of the American Heart Association. 2020. PMID 32500831
- Behers BJ, Behers BM, Stephenson-Moe CA et al.. Magnesium and Potassium Supplementation for Systolic Blood Pressure Reduction in the General Normotensive Population: A Systematic Review and Subgroup Meta-Analysis for Optimal Dosage and Treatment Length. Nutrients. 2024. PMID 39519450
- D'Elia L, Cappuccio FP, Masulli M et al.. Effect of Potassium Supplementation on Endothelial Function: A Systematic Review and Meta-Analysis of Intervention Studies. Nutrients. 2023. PMID 36839211
Stack Score
How this pair moves the number.
Effect on the composite score
If both Furosemide and Potassium are in the same stack, this pair applies +2 to your Stack Score (per scored synergy row).
The full algorithm, the clamping rules, and four worked stacks are documented at /methodology/stack-score.
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