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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 otherwise can i just drop the dose age from 2x a day 50mg st?

2 doctor answers5 doctors weighed in
Dr. Quang Nguyen
Specializes in Endocrinology
Talk to doc : Lowering the dose might cause your levels to go out of range and you won't feel "great" again. Talk to your doc to see if he/she is willing to monitor you closely. If the drugs ptu (propylthiouracil) or methimazole is causing adverse reactions, you might need to think about the othet options: radioactive iodine or surgery.
Dr. Susan Wingo
Endocrinology 33 years experience
WBC issues.: Many people have WBCs lower than the listed normal range. A WBC of 3.1 may be perfectly normal for you. When meds like methimazole or PTU (propylthiouracil) cause problems with the WBC, they cause an immune reaction resulting in extremely low WBC's (usually

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Last updated May 17, 2015

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