Progesterone ControlOriginally Posted by TinTin78
Progesterone : Its not so much progesterone that we watch, which is actually a healthy hormone, but progestins which may act upon its receptors. Progestins, like Tren or Deca, may act on its receptor or lower progesterone in the blood. Gyno and lactating are more common side effects. Some people use progesterone receptor blockers to combat this, or a prolactin production inhibitor.
Lilopristone, Onapristone: These are progesterone blockers also, said to be safer and possibly more effective than RU-486 when it comes to progesterone blocking. They were developed after RU-486 in an attempt to make more effective, less harsh drugs to block progesterone.
Dostinex (Cabergoline), Bromo (Bromocriptine), B-6 : These are used for Deca/Tren gyno sides. This type of gyno is related to progesterone and its receptors. Tren/Deca may act on the progesterone receptor, as they are progestins, and may increase prolactin in the blood (causing lactating). These drugs stop production of prolactin at the pituitary gland. Controlling estrogen levels with an AI also helps here, as progestins themsleves haven't been proven to cause gyno.
RU-486 (Mifepristone - abortion pill) : This drug has the ability to block estrogen, progesterone AND cortisol. It may or may not be very well tolerated, but I would like to find out more about it, as it is used in the bodybuilding world. In PCT it is used to block cortisol and progesterone. A powerful drug that may turn out to be a good choice, but i need more evidence and feedback from experience useing RU-486. Check out this thread i have going if you would like to learn more about it :
http://forums.steroid.com/showthread.php?t=180912