Androgens are responsible for the growth spurt of adolescence and for eventual termination of linear growth, brought about by fusion of the epiphyseal growth centers. In children, exogenous androgens accelerate linear growth rates, but may cause disproportionate advancement in bone maturation. Use over long periods may result in fusion of the epiphyseal growth centers and termination of the growth process. Androgens have been reported to stimulate production of red blood cells by enhancing production of erythropoietic stimulation factor.
As for the flip side of testosterone cypionate, there is not much of a difference when it is compared to all other kinds of testosterone steroids . Some of these effects are simple and can be managed but others are long term effects that come with long term use in large doses. Most of these are permanent. Acne and hair loss can be managed by the cessation of the usage of testosterone cypionate but gynecomastia cannot. The presence of estrogen in the body after aromatization will lead to the development of breasts in men, which is not a pleasant sign. A lot of this female hormone is not good for women too, since it can lead to the development of male sexual characteristics which can lead to infertility due to the cessation of menstruation.