Progonadotropin
Examples of progonadotropic drugs include gonadotropin-releasing hormone ( GnRH ) agonists when administered in a pulsatile ( as opposed to continuous ) manner , antiestrogens such as tamoxifen , clomifene , fulvestrant , and aromatase inhibitors like anastrozole , and , only in men , pure antiandrogens such as flutamide , bicalutamide , enzalutamide , and apalutamide . 
<triplet> tamoxifen <subj> antiestrogen <obj> subject has role <triplet> clomifene <subj> antiestrogen <obj> subject has role <triplet> anastrozole <subj> aromatase inhibitor <obj> instance of <triplet> flutamide <subj> antiandrogen <obj> subject has role <triplet> bicalutamide <subj> antiandrogen <obj> subject has role