The most commonly used AAS in medicine are testosterone and its various esters (but most commonly testosterone undecanoate , testosterone enanthate , testosterone cypionate , and testosterone propionate ),  nandrolone esters (most commonly nandrolone decanoate and nandrolone phenylpropionate ), stanozolol , and metandienone (methandrostenolone).  Others also available and used commonly but to a lesser extent include methyltestosterone , oxandrolone , mesterolone , and oxymetholone , as well as drostanolone propionate , metenolone (methylandrostenolone), and fluoxymesterone .  Dihydrotestosterone (DHT; androstanolone, stanolone) and its esters are also notable, although they are not widely used in medicine.  Boldenone undecylenate and trenbolone acetate are used in veterinary medicine . 
The program has various advantages over other diets, which make it much easier and realistic to follow. Our program offers variation, thus, it won't be boring to follow; it doesn't promote a lifestyle that prevents you from functioning in a social context; it's based on legitimate scientific finding; it's been tested on over 100 Test Subjects; bodybuilders have been exploiting The Anabolic Amplifier Effect for 50 to 60 years now; the "perfect" macronutrient ratios are not as important as the total goal calories in each phase (far easier to tackle); and the program allows you to make changes within the 21-day framework of the diet and training in terms of your individual ambitions and goals.