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 . 
Though many continue to eat healthy, the contestant that desires to bulk up by any means necessary and still have the intake of calories turn to muscle with little effort takes pride in the job done by Timorel. Some claim that it takes effect the moment it hits the system, with continued impact weeks after going off the cycle. Even though excessive catabolic processes affecting the muscles directly, taking a combination of supplements like Anavar along with Timorel has a great effect, adding the bulk and cutting away from it almost simultaneously.