What are the side effects of chlorothiazide?

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Common side effects include:

  • lightheadedness that is pronounced when getting up or dizziness
  • headache
  • appetite loss
  • stomach problems
  • diarrhea
  • hair loss

These symptoms generally do not require a doctors visit, unless they become severe. More serious side effects include:

  • blurry vision
  • changes in skin sensation
  • muscle cramps or weakness
  • thirst
  • vomiting
  • confusion
  • changes in urination
  • erectile dysfunction
  • gout
  • changes in heart rate
  • skin reactions or color change
  • swollen pancreas
  • breathing problems
  • extreme fatigue
  • excessive mouth dryness
  • restlessness
  • unexpected bruises
  • abnormal bleeding
  • fever
  • sore throat

If you are taking chlorothiazide and experience these side effects, you should see a doctor as soon as possible. Any signs of serious allergic reaction, such as rashes, difficulty breathing, chest pain, or facial, tongue or throat swelling require immediate medical attention, call 911.