One afternoon, after struggling up a single flight of stairs with my groceries, I realized how much fluid retention was weighing me down both literally and figuratively. My ankles felt tight and swollen, and no matter how little sodium I ate or how much I elevated my legs, the puffiness refused to budge. When my cardiologist suggested trying furosemide, commonly known as Lasix, I felt cautiously hopeful. My first dose was twenty milligrams taken with a glass of water in the morning. Within an hour I noticed a subt...