Etacrynic acid is a diuretic drug, which is used to treat high blood pressure, fluid retention, and other medical conditions related to excess fluid buildup in the body. It is also known by its drug name, Edecrin. While it is a widely used medication, there are a few different terms that can be used interchangeably to refer to etacrynic acid. Some common synonyms for this drug include ethycrynic acid, 2-ethoxy-1,3-dihydroxypropane, and 2-(2-methoxyethyl)pyridine. No matter which name you use, it is important to follow the instructions of a qualified healthcare professional when using etacrynic acid, as it can have significant effects on the body's fluid balance.