Methimazole Side Effects by Likelihood and Severity

COMMON side effects

If experienced, these tend to have a Severe expression i

  • low levels of white blood cells
  • itching
  • fever
  • a skin rash
  • If experienced, these tend to have a Less Severe expression i

    Sorry, we have no data available. Please contact your doctor or pharmacist.

    INFREQUENT side effects

    If experienced, these tend to have a Severe expression i

  • very low levels of granulocytes, a type of white blood cell
  • low levels of a type of white blood cell called neutrophils
  • a painful condition that affects the nerves in the legs and arms called peripheral neuropathy
  • If experienced, these tend to have a Less Severe expression i

  • dizziness
  • taste impairment
  • nausea
  • vomiting
  • RARE side effects

    If experienced, these tend to have a Severe expression i

  • low blood counts due to bone marrow failure
  • decreased blood platelets
  • low levels of granulocytes, a type of white blood cell
  • inflammation of the blood vessels
  • inflammation of the parotid gland
  • inflammation of the liver called hepatitis
  • a blockage of the bile duct that resulting in high bilirubin levels
  • acute inflammation of the pancreas
  • kidney inflammation
  • swollen lymph nodes
  • If experienced, these tend to have a Less Severe expression i

  • darkening of the skin
  • sensation of spinning or whirling
  • visible water retention
  • a feeling of pins and needles on skin
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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.