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What are the possible side effects of furosemide?

The diuretic furosemide (Lasix) has a number of side effects, including:
  • gastrointestinal side effects such as
  • pancreatitis (an inflammation of the pancreas), jaundice (yellowing of the skin and eyes caused by liver problems), weight loss, diarrhea, constipation, nausea and vomiting
  • general body system side effects such as systemic vasculitis, a form of inflammation of the blood vessels
  • a burning or prickling feeling in the extremities, vertigo, dizziness, blurred vision, headache and a condition called xanthopsia that affects the way you see colors
  • high blood sugar
Call your doctor immediately if you develop any of these side effects: sore throat, ringing in your ears, unusual bleeding or bruising, fever, loss of hearing, severe rash with peeling skin, difficulty breathing or swallowing or rapid and excessive weight loss.
Based on information from iGuard.org, a free medication monitoring service, 29% of patients experience side effects while taking Furosemide (Lasix). Some of the side effects reported by iGuard members include:
  • Urinary Frequency
  • Dryness 
  • Muscle Pain/Cramps
  • Dizziness
  • Fatigue 
  • Electrolyte Problems. 
Please follow up with your doctor or other healthcare provider if you are experiencing any symptoms that worsen or do not go away.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.