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Albany, NY
A 56-year-old female asked:

I have hyperthyroidism the methimazole and ptu (propylthiouracil) cause my wbc to be around 3.1 i feel great. what can i do?

1 doctor answer2 doctors weighed in
Dr. Corey Clay
Allergy and Immunology 11 years experience
Monitor closesly: Although it is working well to suppress thyroid hormone, the methimazole can be toxic to the bone marrow. Your low WBC can be an early indication and needs to be followed closely. Make sure your prescribing physician is aware of the lab result.
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Dr. Corey Clay
Dr. Corey Clay commented
Allergy and Immunology 11 years experience
Provided original answer
Patient followed up with, "if monitored, can I take lower dose?". A virtual consult can be used to provide personalized recommendations/guidance and more information on how methimazole works and how it causes agranulocytosis. Ultimately, the recommendations of the treating physician prevail.
Mar 16, 2015
Last updated Mar 16, 2015


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