Proviron Question..

THE BOUNCER

Community Veteran, Owner of SuperiorMuscle.com
I know that proviron can be used to prevent estrogen induced gyno and that it also has an effect on lowering SHBG levels thus making testosterone more effective in building muscle. My question is, does it have any effect on blocking progesterone induced gyno? I cant seem to find a clear answer on this exact question.

Thanks
 
Proviron has essentially no use as an anti-aromatase... and definitely not an anti-estrogen. It doesn't bind at the estrogen receptor at all... and only very very weakly at the testosterone binding site on the aromatase enzyme. Proviron binds very tightly to sex hormone binding globulin (SHBG). SHBG normally binds up almost all the free testosterone in your system, severely limiting it's bioavailability. Most of that test is then metabolized and does nothing. Proviron binds up all the SHBG so that it can't bind to test... which means that free testosterone levels jump way up. This means alot more binding to the aromatase enzyme... which means more bang for your buck. Of the test you shoot, far less than 10% of it ever even does much of anything... and even less of it actually makes it to the androgen receptor. Most of it is metabolized in the liver, or used as a precursor for other sterol based hormones. Proviron is great for getting more out of your money... much better results from far lower doses of androgens... but that's about it.

As far as binding to the aromatase like Arimidex or Femara... it doesn't do much of anything. The binding it so weak, it's not even considered statistically significant... much less clinically significant.
 
THE BOUNCER said:
I know that proviron can be used to prevent estrogen induced gyno
No.
THE BOUNCER said:
and that it also has an effect on lowering SHBG levels
No. But when proviron binds to SHBG, then that SHBG molecule can't bind to testosterone (rendering it useless). I think that literally lowering the SHBG, if we could do that, might be much more beneficial. Oh well.
THE BOUNCER said:
does it have any effect on blocking progesterone induced gyno?
No.

lonewing's post ablove is good.
 
lonewing and mranak,

I think I have to disagree with you on proviron's effect on preventing gyno. proviron binds to the aromatase enzyme very strongly and prevents testosterone from interacting with it. not only is this medically documented, but I have also found this true in a real world application. I have run the same brand test at the same dosage for 2 different cycles. The only difference between the 2 was that I included proviron in 1 of the cycles at 50mg per day. I developed puffy nips around week 6 in the cycle without proviron. On the other hand, in the cycle with proviron, I had no such problems for the duration of the 16 week cycle. If proviron has no effect on estrogen then explain to me why I got the results that I got.

P.S. I am not arguing here at all. I think we can all learn alot by this discussion. Thanks guys
 
THE BOUNCER said:
If proviron has no effect on estrogen then explain to me why I got the results that I got.

P.S. I am not arguing here at all. I think we can all learn alot by this discussion. Thanks guys



I'm not saying it has no effect at all,just that it's very minimal.And shouldn't be use for gyno prevention and post cycle therapy (pct) alone.Maybe your body responds to the minimal effects of it.Mine dose not.So like most gear,everybody's different and responds different to different compounds.


I don't argue either,thats why I don't post up here much.
Thats probably the first time Mranak agreed with me.lol

Good talkin with ya
 
lonewing said:
I'm not saying it has no effect at all,just that it's very minimal.And shouldn't be use for gyno prevention and post cycle therapy (pct) alone.Maybe your body responds to the minimal effects of it.Mine dose not.So like most gear,everybody's different and responds different to different compounds.


I don't argue either,thats why I don't post up here much.
Thats probably the first time Mranak agreed with me.lol

Good talkin with ya
im not sure that its very minimal. i think its a bit stronger then you give it credit for. as far as post cycle therapy (pct), it should not be used at all. there are some studies that show that it can actually lower test levels..
 
THE BOUNCER said:
im not sure that its very minimal. i think its a bit stronger then you give it credit for. as far as post cycle therapy (pct), it should not be used at all. there are some studies that show that it can actually lower test levels..

Thats not true. Ive got studies that show you can run it at 150mg a week for weeks on end without any effect on HPTA. Only at doses over 350mg week does it start to have an effect after a few months.
 
Taking proviron binds up all the SHBG. That means that all the test in your system is free to work it's magic; your serum test levels to get much higher than normal. This means that you'll see more results from less test. That is good.


I'm off work in a minute so here's a study I found,Hope it helps





Proviron has four distinct uses in the world of bodybuilding. The first being the result of its structure. It is 5-alpha reduced and not capable of forming estrogen, yet it nonetheless has a much higher affinity for the aromatase enzyme (which converts testosterone to estrogen) than testosterone does. That means in administering it with testosterone or another aromatizable compound, it prevents estrogen build-up because it binds to the aromatase enzyme very strongly, thereby preventing these steroids from interacting with it and forming estrogen. So Mesterolone use has the extreme benefit of reducing estrogenic side-effects and water retention noted with other steroids, and as such still help to provide mostly lean gains. Its also been suggested that it may actually downgrade the actual estrogen receptor making it doubly effective at reducing circulating estrogen levels.

The second use is in enhancing the potency of testosterone. Testosterone in the body at normal physiological levels is mostly inactive. As much as 97 or 98 percent of testosterone in that amount is bound to sex hormone binding globulin (SHBG) and albumin, two proteins. In such a form testosterone is mostly inactive. But as with the aromatase enzyme, DHT has a higher affinity for these proteins than testosterone does, so when administered simultaneously the mesterolone will attach to the SHBG and albumin, leaving larger amounts of free testosterone to mediate anabolic activities such as protein synthesis. Another way in which it helps to increase gains. Its also another part of the equation that makes it ineffective on its own, as binding to these proteins too, would render it a non-issue at the androgen receptor.

Thirdly, mesterolone is added in pre-contest phases to increase a distinct hardness and muscle density. Probably due to its reduction in circulating estrogen, perhaps due to the downregulating of the estrogen receptor in muscle tissue, it decreases the total water build-up of the body giving its user a much leaner look, and a visual effect of possessing "harder" muscles with more cuts and striations. Proviron is often used as a last-minute secret by a lot of bodybuilders and both actors and models have used it time and again to deliver top shape day in day out, when needed. Like the other methylated DHT compound, drostanolone, mesterolone is particularly potent in achieving this feat.

Lastly Proviron is used during a cycle of certain hormones such as nandrolone, with a distinct lack of androgenic nature, or perhaps 5-alpha reduced hormones that don't have the same affinities as DHT does. Such compounds, thinking of trenbolone, nandrolone and such in particular, have been known to decrease libido. Limiting the athlete to perform sexually being the logical result. DHT plays a key role in this process and is therefore administered in conjunction with such steroids to ease or relieve this annoying side-effect. Proviron is also commonly prescribed by doctors to people with low levels of testosterone, or patients with chronic impotence. Its not perceived as a powerful anabolic, but it gets the job done equally well if not better than other anabolic steroids making it a favorite in medical practices due to its lower chance of abuse.
 
lonewing said:
Taking proviron binds up all the SHBG. That means that all the test in your system is free to work it's magic; your serum test levels to get much higher than normal. This means that you'll see more results from less test. That is good.


I'm off work in a minute so here's a study I found,Hope it helps
yes, and just like the article you posted says, "So Mesterolone use has the extreme benefit of reducing estrogenic side-effects and water retention noted with other steroids, and as such still help to provide mostly lean gains. Its also been suggested that it may actually downgrade the actual estrogen receptor making it doubly effective at reducing circulating estrogen levels."
 
this is really interesting as proviron is one drug I never tried and never researched....mostly due to what it would do to whats left of my hair
 
needsize said:
this is really interesting as proviron is one drug I never tried and never researched....mostly due to what it would do to whats left of my hair


You should really try it. Your significant other would appreciate it. It does wonders for the sex drive and allows you to dish out elephant sized servings of your kids. Alot of male adult movie actors use it.
 
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I've tried proviron and have to agree with mranak on the SBHG issue. I almost think it impared my cycle.

Also it did little for any libido increase for me.

Last it did nothing for bloat.
 
Proviron improves my libido. I think it makes me appear *slightly* harder. That's all.

Proviron doesn't improve the effect of testosterone, it doesn't give you any more "bang for your buck". That's been shown in excruciating detail on www.cuttingedgemuscle.com. Moreover, its damn expensive so it would make more sense just to inject more testosterone rather than trying (and failing) to have proviron make the testosterone you are injecting more effective.

I also have never been convinced that it has any effect on aromatization.
 
roccodart440 said:
I've tried proviron and have to agree with mranak on the SBHG issue. I almost think it impared my cycle.
LOL. He is saying that proviron binds to SBHG and allows testosterone to do its job better. thus if you agree in what he is saying, then you are agreeing with all of us. I would really question were you got your proviron. As for impairing your cycle, not a chance..
 
Trevdog said:
Proviron doesn't improve the effect of testosterone, it doesn't give you any more "bang for your buck". That's been shown in excruciating detail on www.cuttingedgemuscle.com.
I don't mean to laugh bro but you have to admit that is pretty funny. An internet forum isn't exactly a great reference to prove your point. If you could post the actual studies on this subject, that would be great.
 
Again, for those saying it has no effect on estrogen. I ran the same 2 test cycles, same batch #'s, same dosage and so on. The only thing that changed was the addition of proviron. Without proviron I developed puffy nips, with it I got no such side effect..
 
THE BOUNCER said:
I don't mean to laugh bro but you have to admit that is pretty funny. An internet forum isn't exactly a great reference to prove your point. If you could post the actual studies on this subject, that would be great.

What's funny? I don't feel compelled to "prove" my point, although I would put a bit of effort into it if it wouldn't take forever, and then everyone who desperately wants to believe that proviron enhances test cycles despite a total absence of any evidence supporting that notion would just ignore it anyway.

Where exactly did you (or anyone else) provide references proving that proviron enhances test cycles?

You want me to post a study proving a negative? I can't do that. Maybe you can post a study proving that proviron: 1. enhances the effects of test; and/or 2. Acts as an anti estrogen. No such studies exist.

I did run a quick search and found a post made by big cat that might interest you regarding the "bang for your buck" theory. Here it is

"The problem with reducing SHBG to increase test is that it is a double-edged sword. More free test, but also a higher excretion rate of test. Since test has rather low stability (comparative) at the AR, this would not lead to a functional increase in testosterone. With the possible exception of very high doses, when increased estradiol leads to upregulation of SHBG. Then possible intervention may pay off."

It appears in this thread:
http://www.cuttingedgemuscle.com/Fo...66&perpage=15&highlight=proviron&pagenumber=3


I realize that you perceived an anti estrogenic effect when you ran proviron with test. I'm not going to tell you that the effect wasn't real, although I will suggest that factors other than actual effecacy of proviron as an anti estrogen might have been at work, including the placebo effect. On the other hand, I will again strongly discourage anyone from relying on proviron alone to deal with estrogen, since those that do may find themselves growing man boobs. :)
 
Trevdog said:
What's funny? I don't feel compelled to "prove" my point, although I would put a bit of effort into it if it wouldn't take forever, and then everyone who desperately wants to believe that proviron enhances test cycles despite a total absence of any evidence supporting that notion would just ignore it anyway.

Where exactly did you (or anyone else) provide references proving that proviron enhances test cycles?

You want me to post a study proving a negative? I can't do that. Maybe you can post a study proving that proviron: 1. enhances the effects of test; and/or 2. Acts as an anti estrogen. No such studies exist.

I did run a quick search and found a post made by big cat that might interest you regarding the "bang for your buck" theory. Here it is

"The problem with reducing SHBG to increase test is that it is a double-edged sword. More free test, but also a higher excretion rate of test. Since test has rather low stability (comparative) at the AR, this would not lead to a functional increase in testosterone. With the possible exception of very high doses, when increased estradiol leads to upregulation of SHBG. Then possible intervention may pay off."

It appears in this thread:
http://www.cuttingedgemuscle.com/Fo...66&perpage=15&highlight=proviron&pagenumber=3


I realize that you perceived an anti estrogenic effect when you ran proviron with test. I'm not going to tell you that the effect wasn't real, although I will suggest that factors other than actual effecacy of proviron as an anti estrogen might have been at work, including the placebo effect. On the other hand, I will again strongly discourage anyone from relying on proviron alone to deal with estrogen, since those that do may find themselves growing man boobs. :)

Placebo is a mental effect. Gyno is a physical growth. The 2 have nothing to do with each other.

Here are some various studies on proviron that may interest you. Just do a medline search with the subject title and you will see the studies.

1. Relative binding affinity of anabolic-androgenic steroids: comparison of the binding to the androgen receptors in skeletal muscle and in prostate, as well as to sex hormone-binding globulin.Endocrinology. 1984 Jun;114(6):2100-6.

2. APMIS. 2000 Dec;108(12):838-46.

3. (Xu X, et al. "The effects of androgens on the regulation of lipolysis in adipose precursor cells." Endocrinology 1990 Feb;126(2):1229 ).

4. J Anim Sci. 1992 Nov;70(11):3381-90.

5. Am J Physiol. 1998 Jun;274(6 Pt 1):C1645-52.

6. The effect of mesterolone on sperm count, on serum follicle stimulating hormone, luteinizing hormone, plasma testosterone and outcome in idiopathic oligospermic men.Int J Gynaecol Obstet. 1988 Feb;26(1):121-8.

7. J Appl. Physiol.94 1153-61 2003

8. Effect of non aromatizable androgens on LHRH and TRH responses in primary testicular failure.Horm Metab Res. 1984 Sep;16(9):492-7.

9. [Androgen substitution in the andrological disease picture] Andrologia. 1983 May-Jun;15(3):283-6. German.

10. The effects of mesterolone, a male sex hormone in depressed patients (a double blind controlled study). Methods Find Exp Clin Pharmacol. 1984 Jun;6(6):331-7.

Its also funny that you quoted something that Big Cat had to say on the subject. Its funny because what is written below was written by Big Cat himself.

Proviron has four distinct uses in the world of bodybuilding. The first being the result of its structure. It is 5-alpha reduced and not capable of forming estrogen, yet it nonetheless has a much higher affinity for the aromatase enzyme (which converts testosterone to estrogen) than testosterone does. That means in administering it with testosterone or another aromatizable compound, it prevents estrogen build-up because it binds to the aromatase enzyme very strongly, thereby preventing these steroids from interacting with it and forming estrogen. So Mesterolone use has the extreme benefit of reducing estrogenic side-effects and water retention noted with other steroids, and as such still help to provide mostly lean gains. Its also been suggested that it may actually downgrade the actual estrogen receptor making it doubly effective at reducing circulating estrogen levels.

The second use is in enhancing the potency of testosterone. Testosterone in the body at normal physiological levels is mostly inactive. As much as 97 or 98 percent of testosterone in that amount is bound to sex hormone binding globulin (SHBG) and albumin, two proteins. In such a form testosterone is mostly inactive. But as with the aromatase enzyme, DHT has a higher affinity for these proteins than testosterone does, so when administered simultaneously the mesterolone will attach to the SHBG and albumin, leaving larger amounts of free testosterone to mediate anabolic activities such as protein synthesis. Another way in which it helps to increase gains. Its also another part of the equation that makes it ineffective on its own, as binding to these proteins too, would render it a non-issue at the androgen receptor.

Thirdly, mesterolone is added in pre-contest phases to increase a distinct hardness and muscle density. Probably due to its reduction in circulating estrogen, perhaps due to the downregulating of the estrogen receptor in muscle tissue, it decreases the total water build-up of the body giving its user a much leaner look, and a visual effect of possessing "harder" muscles with more cuts and striations. Proviron is often used as a last-minute secret by a lot of bodybuilders and both actors and models have used it time and again to deliver top shape day in day out, when needed. Like the other methylated DHT compound, drostanolone, mesterolone is particularly potent in achieving this feat.

Lastly Proviron is used during a cycle of certain hormones such as nandrolone, with a distinct lack of androgenic nature, or perhaps 5-alpha reduced hormones that don't have the same affinities as DHT does. Such compounds, thinking of trenbolone, nandrolone and such in particular, have been known to decrease libido. Limiting the athlete to perform sexually being the logical result. DHT plays a key role in this process and is therefore administered in conjunction with such steroids to ease or relieve this annoying side-effect. Proviron is also commonly prescribed by doctors to people with low levels of testosterone, or patients with chronic impotence. Its not perceived as a powerful anabolic, but it gets the job done equally well if not better than other anabolic steroids making it a favorite in medical practices due to its lower chance of abuse.
 
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Good post trevdog.

I like aromasin for bloat/gyno. I really have estro issues with test. Maybe proviiron is anti estro to a point but not strong enough for me to use it for that or to notice at all.
 
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