Lasix injection is a medication containing furosemide, a diuretic that helps the body expel excess salt and water. It is administered intravenously to treat conditions such as edema (fluid retention) and hypertension. Lasix injection acts on the kidneys, promoting increased urine production and reducing fluid buildup. This rapid delivery method is often employed when oral administration is impractical or ineffective. It's crucial to use Lasix under medical supervision, as dosage and administration require careful consideration of the patient's condition and response to treatment.