Possible Side Effects Furosemide
Check with your doctor if any of these most common side effects persist or become bothersome:* abnormal skin sensations; bladder spasm; blurred vision; constipation; cramping; dizziness; dizziness when rising from a seated or lying position; feeling of whirling motion; fever; headache; lightheadedness; mouth and stomach irritation; muscle spasm; nausea; redness; restlessness; ringing in the ears; seeing a yellow color; sensitivity to sunlight; vein inflammation.Seek medical attention right away if any of these severe side effects occur: * Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); confusion; diarrhea; drowsiness; dry mouth; excessive urination; hearing loss; loss of appetite; muscle pain/cramps/weakness; rapid or irregular heartbeat; restlessness; sudden joint pain; unusual bleeding or bruising; unusual thirst; unusual tiredness or weakness; vomiting; yellowing of the skin or eyes.

Drug Class and Mechanism Furosemide
Furosemide is a loop diuretic (water pill) that prevents your body from absorbing too much salt, allowing the salt to instead be passed in your urine.

More InformationFurosemide here
Furosemide is to be used only by the patient for whom it is prescribed. Do not share it with other people. If your symptoms do not improve or if they become worse, check with your doctor.