Many of the steroids that people are using today will aromatize into estrogen in the body, which can cause the above effects. The ancillaries are a way of dealing with them and ridding them from your body. However, one does have to be careful about the type of ancillaries used. Some people find that they have preferences for one of the ancillaries over another. They might find that one is able to work better for them than another does. You will find that you have quite a few choices available when it comes to steroid ancillaries. Some of the popular choices that you should be able to find online include Novladex, Arimidex, Proviron, or Anastrozole.
Testosterone can be administered parenterally , but it has more irregular prolonged absorption time and greater activity in muscle in enanthate , undecanoate , or cypionate ester form. These derivatives are hydrolyzed to release free testosterone at the site of injection; absorption rate (and thus injection schedule) varies among different esters, but medical injections are normally done anywhere between semi-weekly to once every 12 weeks. A more frequent schedule may be desirable in order to maintain a more constant level of hormone in the system.  Injectable steroids are typically administered into the muscle, not into the vein, to avoid sudden changes in the amount of the drug in the bloodstream. In addition, because estered testosterone is dissolved in oil, intravenous injection has the potential to cause a dangerous embolism (clot) in the bloodstream.
As of this writing, there is only one published study on the use of hMG together with hCG anabolic steroid-induced azoospermia (no sperm count) that was persistent 1 year after cessation from steroid use. This case report was a married couple with primary subfertility secondary to azoospermia and male hypogonadotropic hypogonadism. The husband was a bodybuilder who admitted to have used the anabolic steroids testosterone cypionate, methandrostenolone, oxandrolone, testosterone propionate, oxymetholone, nandrolone decanoate, and methenolone enanthate. He was given twice-weekly injections of 10,000 IU of hCG (Profasi; Serono) and daily injections of 75 IU of hMG (Humegon; Organon) for 3 months. Results showed that semen parameters returned to normal after 3 months of treatment and the couple conceived spontaneously 7 months later. It was concluded that anabolic steroid-induced azoospermia that is persistent after cessation of steroid use may be treated successfully with hCG and hMG.