DESC: Lasix, Generic Lasix, Furosemide/Amiloride is in a class of drugs called loop diuretics (water pills). It decreases the amount of fluid in the body by increasing the amount of salt and water lost in the urine. Lasix, Generic Lasix, Furosemide/Amiloride is used to reduce swelling in the body caused by congestive heart failure, liver disease, or kidney disease. Lasix, Generic Lasix, Furosemide/Amiloride may also be used for purposes other than those listed in this medication guide. Symptoms of a Lasix, Generic Lasix, Furosemide/Amiloride overdose include weakness, muscle cramps, fatigue, dizziness, fainting, confusion, irregular pulse, nausea, and vomiting. Do not stop taking Lasix, Generic Lasix, Furosemide/Amiloride suddenly even if you feel better. Stopping suddenly could make your condition worse.