<prompt> Which of the following is the drug of choice for follicle induction for infeility in PCOS:Clomiphene citrateGnRH agonistCombined oral PillsLetrozole  <response>: Letrozole is the Drug of choice for Induction of ovulation in a case of PCOS; Mode of action- Aromatase Inhibitor Decrease Estrogen production Inhibit Negative feedback on FSH Letrozole preferred over Clomiphene Citrate because less chances of multifetal pregnancy high live bih rate OHSS : Rare with it Given for 5 days D5-D9 Sta with 2.5mg Max dose 7.5mg 