Category "D": Ptu (propylthiouracil) works by preventing a final stage of thyroid hormone assembly in the gland.The fetal gland is generally finished forming by 11wks, & they begin to make their own hormone. While most would avoid ptu (propylthiouracil) after 11 wks, it is a better choice for early pregnancy than some alternatives. You need to discuss your pregnancy concerns with your dr & come up with a plan that works for u & baby.
Answered 7/20/2012
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5 doctors weighed in across 2 answers
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