Furosemide is known as a diuretic (like a water pill). It helps get rid of extra water by increasing the amount of urine the body makes. Learn about side effects, drug interactions, dosages, warnings, and more. Furosemide ( Furosemide Tablets ) may treat, side effects, dosage , drug interactions, warnings, patient labeling, reviews, and related medications including drug comparison and health resources. Find patient medical information for Furosemide ( Lasix ) on WebMD including its uses, side effects and safety, interactions, pictures, warnings, and user ratings