The most common adverse effect associated with furosemide therapy is fluid and electrolyte imbalance after either single large doses or prolonged administration. Other side effects are relatively uncommon and include allergy, nausea, diarrhea, blurred vision, dizziness, headache, pancreatitis, photosensitivity, skin rashes, muscle spasm and hypotension. Hyponatremia, hypokalemia, & hypomagnesemia, hypochloremic alkalosis, increased calcium excretion, hypotension; less commonly nausea, gastro-intestinal disturbances, hyperuricemia & gout; hyperglycemia, temporary increase in plasma cholesterol & triglyceride concentrations; rarely rashes, photosensitivity, & bone marrow depression (withdrawal treatment).