Lasix is a common brand name for the drug furosemide, which is used as a diuretic medication to treat fluid buildup and swelling caused by certain medical conditions. When talking about this medication, it may be helpful to have some synonyms on hand to avoid repetition or confusion. Some of the synonyms for Lasix include bumetanide, torsemide, ethacrynic acid, and hydrochlorothiazide. These drugs work by increasing the production of urine, which helps remove excess fluid from the body. While Lasix is a popular and effective medication, alternative drugs like these synonyms may be used in certain cases or for patients who require a different treatment approach.