Although I am usually not inclined to posit speculations on why a particular drug does or doesn't do something, in this case I will. Im guessing that the higher doses of Anadrol cause enough appetite suppression (at least anecdotally) to make eating rather difficult. It can also increase insulin resistance and glucose intolerance (5). This has the effect of making macronutrient absorption more inefficient, and could also be a factor in reducing gains when the dosage goes over 100mgs/day. Unfortunately, Anadrol also has a reasonably profound effect on your body's natural hormonal system, on par with most other oral steroids , but not as bad as most injectables, and its certainly not as harsh on your lipid profile as many anabolics are
It is recommended to take Anadrol in combination with other AAS, exlucding the conjunction with the 17-alpha-alkylated steroids. Given the rapid anabolic effect Oxymetholone is good for the ""quick start"": the action feels almost immediately after the administration. Anapolon often used for muscle gaining with trenbolone, boldenone and Primobolan, to increase the power performance - with testosterone esters (but the latter mix is quite dangerous for the cords, and at the wrong reception and exceededing the allowable loads can cause damage or even break) . Oxymetholone is also often used by bodybuilders before the competitions, because it gives the muscles the bodied look.