I am 28 year old my doctor suggest me letroz 25ml from 3rd day of my period for 5 daysand after taht she will do ovulation study my concern abut this medicne is this safe to consume this medicine i have read many articles about this medicne which says very negative about thisplease suggest me should i take this medicine I am 28 year old women, my doctor suggest me letroz 2.5 ml from 3rd day continue for 5 days.. and after that she will do my ovulation study. please suggest me should i take this medicine ? i read few articles which says negative about this medicne and have many harmfull effects..like abortion ,,defective delivery etc.. , m healthy..got married 2 year back.was facing irregular periods, and i also had thyriod which is under control now. my dotor suggest me this medicne.