You should not use Lasix if you are unable to urinate.
Do not take more Lasix than your recommended dose. High doses of furosemide may cause irreversible hearing loss.
Before using Lasix, tell your doctor if you have kidney disease, enlarged prostate, urination problems, cirrhosis or other liver disease, an electrolyte imbalance, high cholesterol, gout, lupus, diabetes, or an allergy to sulfa drugs.
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Tell your doctor if you have recently had an MRI (magnetic resonance imaging) or any type of scan using a radioactive dye that is injected into your veins. Do not take more of this medication than is recommended. High doses of furosemide may cause irreversible hearing loss. 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.
Before taking this medicine
You should not use Lasix if you are allergic to furosemide, or:
if you are unable to urinate.
To make sure Lasix is safe for you, tell your doctor if you have:
enlarged prostate, bladder obstruction or other urination problems;
cirrhosiss or other liver disease;
an electrolyte imbalance (such as low levels of potassium or magnesium in your blood);
high cholesterol or triglycerides (a type of fat in the blood);
sulfa drug allergy.