Blood Pressure Home > Lasix for Children
Lasix® (furosemide) is a prescription medication used for the treatment of high blood pressure and fluid retention caused by various factors. The drug is approved for treating fluid retention (but not high blood pressure) in children and infants.
When using Lasix in children, the dosage will be based on several factors, such as existing medical conditions and other medications the child is taking (including nonprescription medications, vitamins, and supplements). In infants and children, Lasix dosing typically starts at 2 mg per kilogram per day (about 0.9 mg per pound per day). The child's healthcare provider may increase this amount if needed, up to a maximum of 6 mg per kilogram (about 2.7 mg per pound).
Lasix is a type of diuretic ("water pill") and works by increasing the amount of salt and water the kidneys remove from the blood, which is then passed out through the urine. By increasing the amount of water removed from the blood, Lasix causes a decrease in blood volume. Because of this effect, the medication can lower blood pressure and can help with water retention.
(Click Lasix Uses and Lasix Dosage to learn more about using Lasix for children. These articles also discuss specific Lasix uses and cover some general dosing guidelines for this medication.)