1 Consideration of the evidence on antithyroid drugs and adverse events such ... methimazole or with propylthiouracil and, if dose-related, can lower doses than currently administered be ...

Get detailed information on Propylthiouracil ... who are taking other medications, during pregnancy and breastfeeding. • It may cause drowsiness or dizziness, do not drive a car or operate ...

In the US, the 2 antithyroid drugs available are propylthiouracil (PTU) and methimazole, which impede the synthesis of thyroid hormones by inhibiting the organification of iodine by the thyroid gland.