St1ff, "A very rare but all the more serious problem of Nolvadex is. that. in some cases it does not lower the estrogen level but can increase it."
That kind of scares me...
See here is the thing, your body has worked out a natural balance between testosterone and estrogen levels. When you take something that knocks that balance out of whack. There may be some consequences depending on how out of balance and for how long. If your body senses your testosterone levels rising, or above normal, it sends signals for you to stop producing testosterone, and if the supplement or steroid your taking is strong enough to keep you with really high levels of testosterone, then you will completely stop producing it naturally. This is the reason your balls shrink when on roids. The day you stop taking that substance and artificially inflating your testosterone levels you are left with virtually no T levels or really low T levels. So now you are walking around with a Testosterone and estrogen balance that looks more like the one found in women, so you might start growing boobs retaining water etc... etc... Some people think your body has a hormonal "memory" . Meaning that if your on cycle for months on end the day you stop your body seems to remember the last few months of how it acted and wont necessarily jump right back to where it should be. Now everybody is a little bit different and are affected by different substances a little differently, so what does or does not happen to you will not always apply completely to your buddies.
Nolva is really good at what it is designed to do. Is it the ,be all, and end all of post cycle therapy , NO. Will a certain small percentage of the population have some adverse reaction or have it not work as effectively on them , yes. But if your body senses high estrogen levels and low T levels, like they might coming off the end of a cycle. Then it might react by trying to grow boobs. Nolva is very effective in stopping this reaction. But it is only one piece of the puzzle.
There is another substance called Toremefine citrate it works alot like nolva with one exception, it has also been raising T levels rather quickly along with blocking estrogen receptors. Alot of guys are finding it to be a much better choice as a serm and as a better overall PCT choice. Don't fool yourself into thinking that just because you bought an over the counter supplement to do a cycle on, then all your going to need for PCT is over the counter products. It does not always work that way. Nolva and Toeremefine are also not the only products to consider in PCT. You really should do alot more reading on how steroids affect the body and how all the various PCT products help combat its negative effects and bring you back to your normal balance without growing boobs or LOOSING all the muscle you gained while "on". This web site has alot of good info posted on it. I have been reading like a mad man for months and still have not read all the good info here on different products and protocols on how to cycle and do proper PCT. Another good web site with alot of PCT info is IBE they have a web forum similar to this one with a wealth of knowledge.
I would recommend before you open up any more of those PP or superdrol bottles you get a decent understanding of what to do if throwing of your body's natural balance starts to give you some ugly side effects.