Furosemide injection must always be given slowly. The diuretic effect of Furosemide is proportional to dosage. Doses of 20-40 mg intramuscularly or intravenously may be given initially, if larger doses are required. They should be given by slow infusion and titrated according to the response.
Children: Parental doses for children range from 0.5-1.5 mg/kg bodyweight daily up to a maximum total daily dose of 20 mg.
Elderly: In the elderly, Furosemide is generally eliminated more slowly. Dosage should be titrated until the required responses are achieved.