Ethacrynic Acid Sodium Salt, also known as sodium 2,3-dichloro-4-(2-methylenebutyryl)phenoxyacetate, is a medication primarily used to treat fluid retention in people with congestive heart failure, liver disease, or kidney problems. This water pill works by increasing the production of urine, which helps remove excess fluid from the body. Ethacrynic Acid Sodium Salt is commonly prescribed under the brand name Edecrin. Synonyms for Ethacrynic Acid Sodium Salt include sodium ethacrynate, sodium edecrine, and sodium ethacrylic acid. Although these names refer to the same medication, it is important to consult a healthcare professional for proper dosage and usage instructions to ensure optimal treatment outcomes.