Lasix Information Lasix is a commercial drug that is prescribed in the form of Injection, Tablet . It is primarily used for the treatment of Edema, High BP, Swelling. Other than this, Lasix has some other therapeutic uses , which have been discussed ahead. The right dosage of Lasix depends on the age, gender, and medical history of the patient. Furosemide ( Furosemide Tablets ) may treat, side effects, dosage , drug interactions, warnings, patient labeling, reviews, and related medications including drug comparison and health resources. Lasix Tablet belongs to a group of medicines called diuretics or water tablets. It is used to reduce the swelling (edema) caused by too much water in the body in people who have heart failure, liver, or kidney disease. This medicine is also used to treat high blood pressure. 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.