Diuretics, sometimes called water pills, help rid your body of salt (sodium) and water. Most of these medicines help your kidneys release more sodium into your urine. The sodium helps remove water from your blood, decreasing the amount of fluid flowing through your veins and arteries. This reduces blood pressure.

Do water pills help you lose weight?

When people are looking to lose weight to be healthier – to treat their diabetes or high blood pressure or cholesterol, water pills aren't going to affect any of those things. It's not true weight loss, and its effects are temporary.” Myth: Water pills won't interact with other medications.

How long does it take for a water pill to work?

Diuretics usually start working an hour or two after you take them.