This medication has been approved for treating fluid retention (but not high blood pressure) in children and infants; it is approved for treating high blood pressure and fluid retention in adults.
There are also some "off-label" Lasix indications. Some of these off-label uses include treating the following conditions:
Hypercalcemia (high levels of calcium in the blood)
Water retention due to premenstrual syndrome (PMS).
(Click Lasix Uses for a more in-depth look at these and other indications for Lasix, including specific uses, information on how this drug works, and using it safely in children.)