This was taken from 'Anabolics 2006'
Superdrol (Methyldrostanalone)
Androgenic 20
Anabolic 400
Standard methyltestosterone
Chemical Name 2a,17a-dimethyl
5a-androstane-17b-ol-3-one
Estrogenic Activity: None
Progestational Activity: None
-Like many anabolic steroids was developed, assayed, determined to have favourable characteristics and ultimately ignored
-First mentioned in medical books in 1960, disappeared from research circles in 1965.
-In structure it is a close derivative of Masteron (drostanalone). Only difference is addition of c-17 alpha methyl group to give steroid high bioavailability. Therefore, can loosely be considered methylated version of Masteron
-Though c-17 alpha alkylation often changes not only the structure but function of a steroid, this does not appear to be the case with Superdrol. Both Masteron and Methasteron have a favourable anabolic to androgenic ratio and low estrogenic capability.
-Lab assays put Superdrol ahead in this category giving Masteron a 3:1 Anab/Andro while Methasteron has a 20:1 Anab/Andro ratio.
-Given it's low estrogenic capabilities and high anabolic ability Methasteron is a compound that can be utilized in many ways. Stacking it with a non-toxic injectable such as Testosterone for a mass building phase, or adding it to a Testosterone/Nandrolone stack for a cutting cycle.
-Obviously, being c-17 alpha alkylated hepatoxicity is still a concern and should be watched at higher dosages.
From 'Phat Daddy' (DR. D)
Any 17-aa compound is progestinic to some degree. With SD, it is very very little though. The ones that really are have an ethyl group at the 17 position instead of a methyl group and the 19-nor compounds are really bad like that. 5-reduced compounds like SD or DHT are negligible progestins. That's the real deal, so I'd have to say no. Very little.