Do not use this medication if you are unable to urinate.
Before using this medication, tell your doctor if you have kidney disease, liver disease, gout, lupus, diabetes, or an allergy to sulfa drugs.
To be sure this medication is not causing harmful effects, your blood will need to be tested on a regular basis. Your kidney or liver function may also need to be tested. Do not miss any scheduled appointments.
Furosemide will make you urinate more often and you may get dehydrated easily. Follow your doctor’s instructions about using potassium supplements or getting enough salt and potassium in your diet.
Avoid becoming dehydrated. Follow your doctor’s instructions about the type and amount of liquids you should drink while you are taking furosemide.
If you are being treated for high blood pressure, keep using this medication even if you feel fine. High blood pressure often has no symptoms.