This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Medical, surgical and gynaecological illness complicating pregnancy, Subject name: Gynaecology & Obstetrics
The following drug can be given safely in pregnancy: 
Select and explain. 
A. Propylthiouracil, B. Methotrexate, C. Warfarin, D. Tetracycline
A: Propylthiouracil
Answer: A: Propylthiouracil 
Explanation: Warfarin: causes fetal warfarin syndrome which includes chondrodysplasia punctata,epiphyseal stippling,nasal hypoplasia,optic atrophy,microcephaly tetracycline:discoloration of deciduous teeth methotrexate:folate defeciency TEXTBOOK OF OBSTETRICS,SHEILA BALAKRISHNAN,Pg no:565,2nd edition