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