Yes, Lasix can be given intravenously (IV).
According to the reference provided, Lasix can be administered intravenously. A test dose of 40 to 80 mg of Lasix can be injected slowly IV over 2 to 5 minutes. If this test dose does not increase diuresis within 30 minutes, then an IV infusion of Lasix High Dose 250 mg may be indicated. The reference also states that the infusion fluid Lasix High Dose for IV use is a mildly buffered alkaline solution.
