Side effects of furosemide

What are the possible side effects of furosemide

Seek emergency medical attention if you have any of these signs of allergic reactions: hives; labored breathing; swelling of the face, lips, tongue, or throat.

Stop using furosemide and call your doctor right away if you have serious side effects such as:

  • Ringing in the ears, hearing loss;
  • Itching, loss of appetite, dark urine, clayey stool, jaundice (yellowing of the skin or eyes);
  • Severe pain in the upper abdomen, extending to the back, nausea and vomiting;
  • Weight loss, pain in the body, numbness;
  • Swelling, rapid weight gain, urination less than usual or not at all;
  • Chest pain, a new or worsening cough with fever, trouble breathing;
  • Pale skin, bruises, unusual bleeding, a sense of lightheadedness, heart palpitations, trouble concentrating;
  • Low potassium (confusion, irregular heart rhythm, discomfort in the legs, muscle weakness or lame feeling);
  • Low calcium (tingly feeling around your mouth, muscle density or contraction, overactive reflexes);
  • Headache, a sense of instability, weak or shallow breathing; or
  • A serious skin reaction is fever, sore throat, swelling of the face or tongue, burning sensation in the eyes, pain in the skin, then a red or purple skin rash that spreads (especially on the face or upper body) and causes swelling and flaking.

Less serious side effects may include:

  • Diarrhea, constipation, pain in the stomach;
  • Dizziness, spinning; or
  • Mild itching or rash.

This is not a complete list of side effects, perhaps others. Ask your doctor about side effects. You can report the side effects of the FDA at 1-800-FDA-1088.