Somatropin is a man-made version of the human growth hormone, and is used in the treatment of dwarfism and growth failure. It is worth noting that growth hormone is naturally produced by the pituitary gland, and is necessary to stimulate growth in children. Somatropin, e-coli derived is given as a shot under your skin. Plus, it may sometimes be given at home to patients who do not need to be in the hospital. So, if you are using this medication at home, your doctor will teach you how to prepare and inject it. Bear in mind that Somatropin is not right for everyone. Do not use it if you had an allergic reaction to somatropin, benzyl alcohol, or metacresol, or if you have cancer, diabetic retinopathy, or acute lung failure. Although not all of these side effects may occur, if they do occur they may need medical attention, and these side effects include bleeding gums, bloating of the face, numbness, coughing up blood, and difficulty with breathing or swallowing. As for the rare side effects of Somatropin, they include blurred vision, bone pain, change in personality, and change in vision. On a side note, Somatropin is not recommended during pregnancy, and should be discontinued if pregnancy occurs.