What Is a Diuretic?
By Frieda Wiley, PharmD, CGP, RPhMedically Reviewed by Rosalyn Carson-DeWitt, MD
Also known as “water pills,†these drugs rid the body of extra water and lower blood pressure.
Diuretics are a class of medications commonly known as "water pills."
They're prescribed to treat high blood pressure; swelling of the feet, ankles, and lower legs and fluid in the lungs caused by heart failure; fluid buildup in the abdomen caused by liver damage or certain cancers; and eye conditions such as glaucoma.
https://www.everydayhealth.com/diuretic/guide/