Dianabol is the most recognized trade name for the drug methandrostenolone, also referred to as methandienone in many countries. Methandrostenolone is a derivative of testosterone, modified so that the hormone’s androgenic (masculinizing) properties are reduced and its anabolic (tissue building) properties preserved. Having a lower level of relative androgenicity than testosterone, methandrostenolone is classified as an “anabolic” steroid, although quite a distinct androgenic side is still present. This drug was designed, and is principally sold, as an oral medication, although it can also be found in a number of injectable veterinary solutions. Dianabol is today, and has historically been, the most commonly used oral anabolic/androgenic steroid for physique and performanceenhancing purposes.
 
Stacking Dianabol with Injectable Steroids
The effect of most injectable anabolic steroids is greatly enhanced by addition of Dianabol. The improvement is greater than from simply increasing the amount of injectable by the same amount. A classic and dramatic example is trenbolone. Though the total amount of steroid used is the same in all three cases, 50 mg/day each of trenbolone acetate stacked with 50 mg/day Dianabol provides a far more effective steroid cycle than either 100 mg/day of trenbolone acetate alone or 100 mg/day Dbol alone. The side effect profile is superior as well. In other words, the compounds act synergistically: the whole is greater than the parts. This is likely due to differing mechanisms of action.