A mother brought her 8 month-old baby to the emergency room because the baby appears to be having trouble breathing. He is also not gaining weight as he should, gets frequent respiratory infections, gets short of breath and becomes sweaty when crying or playing. Upon further enquiry, the mother reports that she took some medications during her pregnancy with this child, ‘a vitamin pill’ ‘an energy pill’ and ‘some other pill’ her father-in-law gave her, which helped him a lot. She is not able to recollect its name. On physical examination of the baby, a continuous “machinelike” murmur is heard and you note signs of pulmonary congestion. Of the following, this mother probably took which medication, that caused a congenital heart disorder in this baby?
