It should be noted however that the clinical androgenic and anabolic activity of the androgenic progestins listed above is still far lower than that of conventional androgens and anabolic steroids like testosterone and nandrolone esters. As such, they are only generally associated with such effects in women and often only at high doses. In men, due to their concomitant progestogenic activity and by extension antigonadotropic effects, these progestins can have potent functional antiandrogenic effects via suppression of testosterone production and levels.