edema

furosemide + potassium

Furosemide is a loop diuretic that blocks the sodium-potassium-chloride cotransporter in the kidney, making it one of the most reliable causes of drug-induced low potassium (hypokalemia). Supplementation or potassium-sparing co-therapy is often needed, but adding potassium on your own — especially alongside ACE inhibitors, ARBs, or kidney impairment — can swing levels too high. The combination should always be guided by blood monitoring rather than self-dosing.