Each GP Oxy tablet contains 50mg of Oxymetholone. GP Oxy is available in a sachet of 50 tablets. GP Oxy is an artificial drug that imitates testosterone. It’s an anabolic steroid. The drug is prescribed to patients with certain conditions of deficit of red blood cells (anemia); the types of this disease when GP Oxy is helpful are aplastic anemia, hypo-plastic anemia (caused by chemotherapy), and myelofibrosis.