Testosterone and its derivate are made synthetically pharmaceutically as drugs for many different treatments. Pharmaceutical research of anabolic steroid is not focused a lot on muscle grow in healthy individuals but only in some aging related diseases like sarcopenia – the loss of skeletal muscle mass and strength as a result of aging. Osteoporosis is one of the aging diseases that is also sometimes treated with anabolic steroids. In all these treatments, serious hormonal misbalance is highly possible, and a reaction of other, not targeted tissues. Some of the side effects using anabolic steroids can lead to liver conditions like peliosis hepatis – blood-filled cysts replacing healthy liver cells. This condition is often diagnosed late when it is already life threatening to treat liver failure present or intra-abdominal bleeding start.
Some bodybuilders and athletes use trenbolone esters for their muscle-building and otherwise performance-enhancing effects.  Such use is illegal in the United States and many other countries. The DEA classifies trenbolone and its esters as Schedule III controlled substances under the Controlled Substances Act .  Trenbolone is classified as a Schedule 4 drug in Canada  and a class C drug with no penalty for personal use or possession in the United Kingdom .  Use or possession of steroids without a prescription is a crime in Australia . 
From all the forms of steroids that are available in the market you will find that there are a large number of steroids that are available in the both oral as well as injectable form. While comparing the oral and injectable form, more stability with some quality gains would be achieved by using injectable form of the steroids. But there are some higher amount of side effects associated with the injectable form. The first thing is that the user must not make any mistake while administrating the injectable form of steroid in the body. There are some anabolic androgenic steroids that are not available in both forms while there are some whose oral form is less effective than the injectable form and vice versa. Some of these steroids are being discussed here.