Progestins and preventing it(ARGUEMENT/DEBATE)
"Progestins "
The presence of progesterone in male bodybuilders is through the use of the progestins, i.e. Oxymetholone (Anadrol, Anapolan50), Trenbolone (Finaject, Parabolan) and Nandrolone (Deca durabolin). A large problem for the bodybuilder is that the symptoms displayed by progesterone are identical to those of oestrogen, but the concurrent use of the typical anti-oestrogens appears to have no effect in controlling or treating it.
Progesterone tends to aggravate oestrogen induced gyno symptoms, making them more difficult to cure. We will look at some methods of avoiding or controlling them, bearing in mind that progesterone actually requires oestrogen presence to activate it in the first place.
Use with non-aromatising steroids
If progesterone requires oestrogen presence to activate it, then one method of avoiding this would be to use the progestins in stacks with non-aromatising steroids. Amazingly heavy androgenic steroids like Anadrol and Trenbolone are exceptionally mild and safe with regard to female characteristics when used in conjunction with non-aromatising steroids like Primobolan or Winstrol. This is great news for the gyno-prone individual who has previously avoided these stronger steroids for fear of gyno development. A simple stack of Anadrol and Primobolan will go along way to packing on some serious mass without the worry of developing gyno.
Competitive Aromatase Inhibitors
If aromatising steroids are to be included in the stack with progestagenic steroids, then the concurrent use of Competitive Aromatase Inhibitors, like Arimidex or Proviron, would also seem a sensible option. These can be incorporated to keep oestrogen levels low and avoid the activation of the progesterone. Although they will not help with already developed progesterone induced gyno, they can certainly be employed to avoid its development. As usual, the amount of aromatase inhibitor required increases with increasing dose of aromatising steroids used, but the best dose is still the minimum amount that can be got away with to produce the desired effect.
Winstrol
The use of Winstrol is also an effective method of controlling progesterone-induced gyno, as it is anti-progestagenic. An effective dose appears to be in the vicinity of 50mg eod (depot) or 30 to 35mg/day (tabs) although this dose may require increasing depending on the doses being employed in the stack.
One important point worth mentioning is, although generally the progestins do not aromatise, there is an exception to this rule: Deca, as well as being a progestin also aromatises, only very slightly, but nevertheless, still does to some extent. Although this is not nearly enough to cause the large majority any problems at all, for those extremely sensitive to gyno, this small amount of aromatisation to oestrogen can be enough of an elevation to activate the progesterone. Very few people are likely to suffer this, but we feel it is a point worth mentioning. "
http://muscletalk.co.uk/oestrogen-progesterone.asp
