Drug the choice for hyperthyroidism in first trimester of pregnancy is: (A) Methimazole, (B) Propylthiouraril, (C) Carbimazole, (D) Perchlorate
Answer is B. Propylthiouracil is the only thioamide which is least teratogenic and hence it is the drug of choice to hyperthyroidism in pregnancy and lactation.