What side effects may I notice from receiving Lasix?

Side effects that you should report to your doctor or health care professional as soon as possible:

-blood in urine or stools
-dry mouth
-fever or chills
-hearing loss or ringing in the ears
-irregular heartbeat
-muscle pain or weakness, cramps
-rash, fever, and swollen lymph nodes
-redness, blistering, peeling or loosening of the skin, including inside the mouth
-skin rash
-stomach upset, pain, or nausea
-tingling or numbness in the hands or feet
-unusually weak or tired
-vomiting or diarrhea
-yellowing of the eyes or skin
Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):

-headache
-loss of appetite
-unusual bleeding or bruising

This list may not describe all possible side effects for Lasix. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.