Among the widely used steroids is Deca-Durabolin. For the past three decades, Deca Durabolin steroid has delivered great gains to people looking for muscle mass and has the ability to reduce joint pain and boost the body’s immune system. The most important benefit of Deca-Durabolin for both amateur athletes and bodybuilders is that it doesn’t have serious side effects since it doesn’t convert to estrogen like other compounds. As such, Deca-Durabolin does not have severe or higher degree side effects that other compounds might have.
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.