methyldrostanolone (superdrol) is already methylated masteron, with an additional methyl group added to make make it a di methyl. 2a methylated, and 17a methylated.
dimethazine, (mebolazine, roxilon) is two methyldrostanolone molecules with an added azine (nitrogen) bond.
when this bond is broken in the stomach, you get methyldrostanolone with a nitrogen molecule attached to it, making it a less potent form of superdrol. (methyldrosanolone-azine if you will)
less anabolic/ more androgenic.
210/95 for dimethazine compared to 400/20 for methyldrostanolone.
and this is not a pro hormone, but a steroid, just like superdrol, epistane, halodrol, m14add.