Westhroid Side Effects by Likelihood and Severity

COMMON side effects

If experienced, these tend to have a Severe expression i

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If experienced, these tend to have a Less Severe expression i

  • infertility in women

    • INFREQUENT side effects

    If experienced, these tend to have a Severe expression i

  • decreased calcification or density of bone

    • If experienced, these tend to have a Less Severe expression i

  • high blood pressure
  • weight loss

    • RARE side effects

    If experienced, these tend to have a Severe expression i

  • mood changes
  • pseudotumor cerebri, a condition with high fluid pressure in the brain
  • a heart attack
  • angina, a type of chest pain
  • complete stoppage of the heart
  • abnormal heart rhythm
  • heart failure
  • hives
  • seizures
  • a skin rash
  • trouble breathing
  • abnormal liver function tests
  • a type of allergic reaction called angioedema
  • fast heartbeat

    • If experienced, these tend to have a Less Severe expression i

  • irregular periods
  • a problem with menstrual periods
  • hair loss
  • muscle spasm
  • muscle weakness
  • difficulty sleeping
  • fever
  • low energy
  • excessive sweating
  • muscle tremors
  • temporary redness of face and neck
  • increased hunger
  • headache
  • heart throbbing or pounding
  • vomiting
  • diarrhea
  • stomach cramps
  • nervousness
  • irritability
  • anxious feelings
  • heat intolerance
  • increased pulse rate
    • Full Drug Information

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    Selected from data included with permission and copyrighted by First Databank, Inc. This copyrighted material has been downloaded from a licensed data provider and is not for distribution, except as may be authorized by the applicable terms of use.

    CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment.