Clomiphene citrate used in initial treatment for most anovulatory infertile women is: (A) Steroidal triphenylethylene derivative, (B) Given on 7th day to 10th day after onset of spontaneous menses, (C) Can be administered if no follicle is >20mm and endometrium is <5mm, (D) Is oestrogen antagonist only
Answer is C. Clomiphene citrate is non-steroidal derivative given on 3rd to 5th day of cycle. It has both oestrogen agoinst and antagonist properties.