To strengthen the anabolic properties of testosterone, more than 100 synthetic steroid derivatives have been described for human purposes. The anabolic effect promotes protein synthesis, muscle growth and erythropoiesis. In clinical practice, substances with anabolic effect are needed to overcome various catabolic states. However, none of these compounds are devoid of androgenicity. Androgenic and anabolic properties of anabolic steroids cannot be totally separated. Therefore, it is more appropriate to use the term anabolic androgenic steroids (AAS).
by Bill Roberts - Contrary to what many would expect, this compound is actually only a weak agonist of the androgen receptor (AR), with poor binding. It follows, then, that its value must mostly come from non-AR-mediated effects. It is therefore a Class II steroid. Since it is not very effective in activating ARs, it should be stacked with a Class I steroid that is effective in this regard, such as Primobolan , Deca Durabolin , or trenbolone acetate . There is no point in stacking it with Anadrol®, which has similar activity -- one ought to simply use the more appropriate drug. With testosterone or Deca, Danabol / Dianabol is to be preferred; with Primobolan or trenbolone acetate, Anadrol® is to be preferred (though Danabol / Dianabol is still a good choice) because Anadrol® does not aromatize. For an oral-only cycle -- something I don't recommend -- Anadrol® is the better choice in my opinion for that also, at 150 mg/day (preferably divided to 3 or 6 doses.)