Somatropin is a kind of human growth hormone that is essential for bone and muscle growth. It treats medical disorders such as growth failure, growth hormone deficit, pediatric growth hormone deficiency, growth retardation, intestinal dysfunction, short bowel syndrome, and HIV-related weight loss. Somatropin is also used to help children with specific diseases such as Noonan syndrome, Turner syndrome, and idiopathic low stature develop faster. Adults can also take somatropin to treat short bowel syndrome or to avoid significant weight loss caused by AIDS. You may feel some negative effects after using Somatropin like bone or muscle pain, hair loss, and pain and swelling at the site where injected.