There is a huge difference between non-aromatizing and anti-estrogen.
Here's a bit from the Superdrol writeup. If this means Superdrol itself is anti-estrogen, it doesn't say. I know there is more information similar to this, but there's 100's of threads on SD, and I don't have the time to search them all for you.
EFFECTS
Anabolic effects & dosing requirements
As fascinating as all this chemistry might be, you are probably much more interested in how well Superdrol is going to work. What you are going to gain, and how much it will take you to make these gains? The gains from Superdrol are very dry and lean, so numbers do not tell the whole story, but let us look at them nonetheless. According to the book values, Superdrol should be 20% as androgenic as the reference standard methyl-test, and 400-800% as anabolic, while M1T is 910-1600%, and Anadrol closer to 300%, while being twice as androgenic as Superdrol, mg for mg. So in theory, Superdrol should be half as anabolic as the same dosage of M1T, and 10-20% as androgenic. This would mean that it should take twice the dosage of Superdrol to match the anabolic effects of M1T, at which dosage its androgenic side-effects would be 20-40% of those from M1T. Fortunately in the case of Superdrol it exceeds in practice its theoretical promise. All testers – who were selected in part because of their experience with M1T – found that the muscle gains produced from Superdrol were no less than 2/3 of what a comparable dose of M1T would have given them. Moreover, they found very few side-effects to complain about.
What this means for you is that you will need somewhere between 10 and 40mg of Superdrol per day. Period. There was, certainly, a desire to get this product to market before the ban, but because we were able to keep its chemistry secret, competition did not force it to be rushed, as was the case with M-Dien. Accordingly, proper testing was carried out, allowing us to determine real world dosing recommendations, not ballpark theoretical numbers. The following recommendations are honest and accurate: 10-15mg will be sufficient for beginners under 200lbs; 20-25mg for those advanced lifters under 200lbs, or for those above 200lbs but untrained; 30-35mg for men who have seriously trained themselves but are under 240lbs. For men who think they need to run a dose which falls between the use of whole capsules, one extra 10mg capsule can be taken before workouts, such that the weekly average is appropriate. as a rule of thumb, Superdrol will require 50% more of a dose than M1T to give you comparable gains in muscle. Any women who are entertaining the possibility of using Superdrol should reduce the weight to accord with their sex and their height, and then divide these dosages by a factor of no less than ten. Capsules will then have to be diluted in liquid to be measured accurately. For men, 40mg is a dose only for the very large or the true non-responders, by which I mean people who do not see results on less than 30mg of M1T. Very few people will need 40mg of Superdrol, and no one will need above 50mg. If used in a stack reduce the daily dose by 5-10mg, which would be very prudent given how well Superdrol will stack, and if not its expense, then your very limited supply.
The testers whose dosing fit the above guidelines gained, on average, five pounds of muscle in under three weeks, while losing water and gaining no fat on hyper caloric bulking diets.
The quality of the gains from Superdrol comes from its likeness to Masteron while the quantity comes from its similarity to Anadrol. Masteron, expensive and very rare, is almost a perfect cutting steroid, being highly androgenic and anti-estrogenic. If you must have a rough comparison to something already out there, one tester described the quality of gains as being akin to those from fina or a test/halo combo, but such comparisons are bound to be inexact. Gains are very dry, and it makes muscles noticeably more hard and dense. The explosive gains from Anadrol are accompanied by a great deal of water retention and fat. M1T, as you surely well know, produces explosive gains not unlike those of Anadrol, but this comes at a cost. More on this later. As to how difficult it is to retain the gains from Superdrol, you are invited to follow the testers’ post-cycle results. To date, the results are promising, with no loss of mass or vascularity. The gains from Superdrol will be impressive, and they will not take long to start, but they will be more gradual to be recognized than those which come from aromatizing steroids. Your numbers in the gym and on the tape measure will go up, not explosively, but they will go up surely and steadily.
The diuretic effect of Superdrol will at first mask the gains as you lose water and gain muscle. When mass begins to increase, it should do so disproportionately compared to tape-measurements. So if you are only checking the scale, or if you are not lean enough to notice the loss of water, persist and be rewarded.
