Others purchase HGH products -- or products that claim to increase your body's own production of HGH -- in the form of pills and sprays. Companies that market these products on TV infomercials or online claim they turn back your body's biological clock, reducing fat, building muscle, restoring hair growth and color, strengthening the immune system, normalizing blood sugar , increasing energy and improving sex life, sleep quality, vision , and memory. However, the Federal Trade Commission has seen no reliable evidence to support the claim that these products have the same effects as prescription HGH, which is always given by injection. Taken orally, HGH is digested by the stomach before it can be absorbed into the body.
The most common adverse reactions to somatropin therapy are joint pain, headache, flu-like symptoms, peripheral edema (water retention), and back pain. Less common adverse reactions include inflammation of mucous membranes in the nose (rhinitis), dizziness, upper respiratory infection, bronchitis, tingling or numbness on the skin, reduced sensitivity to touch, general edema, nausea, sore bones, carpal tunnel syndrome, chest pain, depression, gynecomastia, hypothyroidism, and insomnia. The abuse of somatropin may cause diabetes, acromegaly (a visible thickening of the bones, most notably the feet, forehead, hands, jaw, and elbows), and enlargement of the internal organs. Due to the growth promotion effects of human growth hormone, this drug should not be used by individuals with active or recurring cancer.