What side effects may I notice from receiving Ethacrynic Acid?

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

-allergic reactions (skin rash, itching or hives; swelling of the face, lips, or tongue)
-blurred vision
-decreased hearing, ringing of the ears
-high blood sugar (increased hunger, thirst or urination; unusually weak or tired, blurry vision)
-increased thirst
-kidney injury (trouble passing urine or change in the amount of urine
-loss of appetite
-low blood sugar (feeling anxious; confusion; dizziness; increased hunger; unusually weak or tired; increased sweating; shakiness; cold, clammy skin; irritable; headache; blurred vision; fast heartbeat; loss of consciousness)
-low magnesium levels (fast, irregular heartbeat; muscle cramp or pain; muscle weakness; tremors; seizures)
-low potassium levels (trouble breathing; chest pain; dizziness; fast, irregular heartbeat; feeling faint or lightheaded, falls; muscle cramps or pain)
-severe diarrhea
-unusual sweating
Side effects that usually do not require medical attention (report to your doctor or health care provider if they continue or are bothersome):

-general ill feeling or flu-like symptoms
-headache
-infection (fever, chills, cough, sore throat, pain or trouble passing urine)
-low blood pressure (dizziness; feeling faint or lightheaded, falls; unusually weak or tired)
-painful or difficulty swallowing
-stomach pain
-vomiting

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