What do water pills do?

Answer 1

For high blood pressure, diuretics, commonly known as "water pills," help your body get rid of unneeded water and salt through the urine. Getting rid of excess salt and fluid helps lower blood pressure and can make it easier for your heart to pump.

Answer 2

Hydrocholorothiazide, better known as "water pills," is used to treat high blood pressures as well as fluid retention caused by conditions such as Heart disease. The pill works to force the kidneys to rid the body of excess water and salt via urine.

Answer 3

They are referred to as diuretics.

Definition

Diuretics are medicines that help reduce the amount of water in the body.

Source: Answers.com