I was doing some reading up on Anadrol and found this, please notice the part in bold.

“Unlike Dianabol , however, it seems that oxymetholone is progestagenic. It has been observed to cause nipple soreness or to aggravate gynecomastia even in the presence of high dose antiestrogens, strongly suggesting that the effect is not estrogenic. That effect can be reduced by concurrent use of stanozolol (Winstrol), which is anti-progestagenic. This progestagenic effect of oxymetholone is only a concern when using aromatizing steroids . With androgens such as Primobolan , oxymetholone stacks very nicely and is a surprisingly friendly drug. In contrast, with testosterone it is a very harsh drug.”

Winny is anti-progestagenic? I have never heard this before.

Here is a link to the site I found this on if anyone is interested.

http://www.mesomorphosis.com/steroid...es/anadrol.htm