Loop diuretics, like Furosemide, are given to help reduce the amount of water in the body. They work by acting on the kidneys to increase the flow of urine. Furosemide is also used to treat high blood pressure in patients who are not helped by other medicines or who have kidney problems.
Be sure to tell your doctor of any allergies you have whether it is to medication or food, preservatives, or dyes. Tell your doctor immediately if you are, or become pregnant, or are breastfeeding. Also, tell your doctor of any other medications you are taking, including vitamins and supplements, and any medical conditions you may have.
It is very important that you take this medicine exactly as your doctor tells you to. Do not take more or less medicine than directed. If you miss a dose of this medicine, take it as soon as you remember, unless it is almost time for your next dose. Do NOT double doses.
Tell your doctor as soon as possible if any of the following side effects occur: black, tarry stools; blood in urine or stools; cough or hoarseness; fever or chills; joint pain; lower back or side pain; painful or difficult urination; pinpoint red spots on skin; skin rash or hives; severe stomach pain with nausea and vomiting; unusual bleeding or bruising; or yellow eyes or skin.
Lasix is a diuretic which is an anthranilic acid derivative. Lasix for oral administration contains furosemide as the active ingredient and the following inactive ingredients:lactose monohydrate NF, magnesium stearate NF, starch NF, talc USP, and colloidal silicon dioxide NF. Chemically, it is 4-chloro-N-furfuryl-5-sulfamoylanthranilic acid. Furosemide is available as white tablets for oral administration in dosage strengths of 20, 40 and 80 mg. Furosemide is a white to off-white odorless crystalline powder. It is practically insoluble in water, sparingly soluble in alcohol, freely soluble in dilute alkali solutions and insoluble in dilute acids.
Furosemide has the following structural formula: