Is Injectable Masteron Anti-estrogenic?

[Jacob Creutzfeldt]

I think the title says it all. Anyone with experience combining it with aromatizable roids and find it an effective anti-estrogen?

 

[Hugh Gellatts]

I think it might have the same anti-progestin effects as winstrol. I still had to use alot of anti-estros when using it with test though.