<prompt> Continuous GnRH is useful in all except:Precautious pubertyProstate cancerMale infertilityEndometriosis  <response>: Ans. C Male infertilityRef: Goodman Gilman 13th EP781GnRH agonists can be used by pulsatile and non-pulsatile or continuous dosing.By pulsatile dosing they increase release of LHFSH and cause ovulation, spermatogenesis and increase synthesis estrogen and testosterone. Hence used for treatment of anovulation, oligospermia male infertility, delayed puberty and sexual infantilism.By continuous dosing, they decrease synthesis of estrogen and testosterone. Hence used for treatment of estrogen and testosterone dependent conditions like ER positive breast cancer, endometriosis, uterine fibroids and prostate cancer. 