best known is the impairment of spermatogenesis by direct inhibition of the germinal epithelium ( antispermatogenic agents : cytostatics , immunosuppressive agents , psychopharmacological compounds , antibiotics ) or indirectly by influencing the axis between hypothalamus , pituitary gland , and gonads ( hormones : estrogens , gestagens , androgens , anabolics , antiandrogens ) .
C0037864
spermatogenesis
C0018067
gonads