Dose of Proviron to lower SHBG?

[sensational]

What is an effective daily dose of proviron to accomplish this?

Thanks!

 

[GUARDIAN]

for me when on cycle 25mg ed.

 

[sensational]

Thanks dude.

 

[gjohnson5]

Proviron does not lower SHBG. It is said however that proviron has a higher affinity to SHBG and aromatase then testosterone , which can lead to the misconception that it lowers SHBG. If this is true, then proviron will leave more testosterone available for muscle , bone , CNS building

 

[sensational]

Proviron does not lower SHBG. It is said however that proviron has a higher affinity to SHBG and aromatase then testosterone , which can lead to the misconception that it lowers SHBG. If this is true, then proviron will leave more testosterone available for muscle , bone , CNS building

Sounds like an amazing supplement to any cycle!

 

[eddymerckx]

Proviron and SHBG
by William Llewellyn

Proviron, SHBG and Anabolic Steroids
Q: Does Proviron increase or reduce the anabolic effect of the steroids?

A: At one time it was a commonly held belief that Proviron was an anti-anabolic steroid – that it reduced the anabolic effect of other steroids. I believe Dan Duchaine’s Underground Steroid Handbook II was the first to popularize this theory. In it, Dan comments that Proviron itself has little anabolic value. Noting that it is also binds the androgen receptor with high affinity, he further concluded that it must act as a blocking agent, incapable of imparting a strong anabolic effect, and at the same time preventing other (more anabolic) steroids from binding the receptor. The conclusion seemed logical, but it turned out that Dan was only partly correct. Proviron indeed has little anabolic value by itself. Studies that were uncovered much later, however, would give a different explanation as to why. As it turned out, the poor anabolic potency of Proviron was caused by the drug being very rapidly metabolized to inactive metabolites in skeletal muscle tissue, not issues with receptor activation or transcription. While Proviron could bind the androgen receptor very avidly and impart a normal anabolic message to the cell, in this area of the body very little drug will actually make it to the receptor to do so. So, alas, Proviron is not the anti-anabolic agent we once thought it to be (but it is still a weak anabolic).

This leaves us with the other side of your question. Does it increase the anabolic potency of other steroids? The answer is that it may to some extent, but it depends on the context. The main trait we are looking at here is the high binding affinity Proviron has for SHBG (sex hormone binding globulin). SHBG is a protein that binds to and temporarily prevents anabolic/androgenic steroids from activating their receptors. The higher the percentage of unbound steroid in the blood, the more active the steroid is going to be in the body. Given that Proviron binds to SHBG so strongly, perhaps more strongly that any commercial steroid known, it may displace other steroids that also like to bind this protein. With Proviron beating the other molecules to the seat, so to speak, it is forcing a greater percentage to remain in a free (active) state. This is, of course, essentially the same thing Duchaine first proposed, but with a different target site and outcome.

Testosterone is a good drug for stacking Proviron with in this regard, as it likes to bind SHBG. Many other synthetic steroids, however, bind with SHBG in much lower percentages. So depending on the other steroid(s) taken, the impact of Proviron will range from “noticeable” to “very slight if any at all

 

[Nelson Montana]

Proviron and SHBG
by William Llewellyn

Proviron, SHBG and Anabolic Steroids
Q: Does Proviron increase or reduce the anabolic effect of the steroids?

A: At one time it was a commonly held belief that Proviron was an anti-anabolic steroid – that it reduced the anabolic effect of other steroids. I believe Dan Duchaine’s Underground Steroid Handbook II was the first to popularize this theory. In it, Dan comments that Proviron itself has little anabolic value. Noting that it is also binds the androgen receptor with high affinity, he further concluded that it must act as a blocking agent, incapable of imparting a strong anabolic effect, and at the same time preventing other (more anabolic) steroids from binding the receptor. The conclusion seemed logical, but it turned out that Dan was only partly correct. Proviron indeed has little anabolic value by itself. Studies that were uncovered much later, however, would give a different explanation as to why. As it turned out, the poor anabolic potency of Proviron was caused by the drug being very rapidly metabolized to inactive metabolites in skeletal muscle tissue, not issues with receptor activation or transcription. While Proviron could bind the androgen receptor very avidly and impart a normal anabolic message to the cell, in this area of the body very little drug will actually make it to the receptor to do so. So, alas, Proviron is not the anti-anabolic agent we once thought it to be (but it is still a weak anabolic).

This leaves us with the other side of your question. Does it increase the anabolic potency of other steroids? The answer is that it may to some extent, but it depends on the context. The main trait we are looking at here is the high binding affinity Proviron has for SHBG (sex hormone binding globulin). SHBG is a protein that binds to and temporarily prevents anabolic/androgenic steroids from activating their receptors. The higher the percentage of unbound steroid in the blood, the more active the steroid is going to be in the body. Given that Proviron binds to SHBG so strongly, perhaps more strongly that any commercial steroid known, it may displace other steroids that also like to bind this protein. With Proviron beating the other molecules to the seat, so to speak, it is forcing a greater percentage to remain in a free (active) state. This is, of course, essentially the same thing Duchaine first proposed, but with a different target site and outcome.

Testosterone is a good drug for stacking Proviron with in this regard, as it likes to bind SHBG. Many other synthetic steroids, however, bind with SHBG in much lower percentages. So depending on the other steroid(s) taken, the impact of Proviron will range from “noticeable” to “very slight if any at all

This is an accurate assessment. It's also the principle behind UNLEASHED. Alone, it won't pack on a lot of muscle, but more bio-available testosterone has many benefits -- increased strength, heightened libido, an anti estrogenic effect and increased effectiveness of other compounds as well as increased "hardness." This makes ideal either on cycle or post cycle or in-between. Of course, UNLEASHED is non suppressive but even proviron is hardly suppressive (Some say not at all, but I'd challenge that). Proviron stacks well with anything. One problem though. It is VERY hard on the hair since it's essentially DHT. UNLEASHED is not.

 

[needtogetaas]

This is an accurate assessment. It's also the principle behind UNLEASHED. Alone, it won't pack on a lot of muscle, but more bio-available testosterone has many benefits -- increased strength, heightened libido, an anti estrogenic effect and increased effectiveness of other compounds as well as increased "hardness." This makes ideal either on cycle or post cycle or in-between. Of course, UNLEASHED is non suppressive but even proviron is hardly suppressive (Some say not at all, but I'd challenge that). Proviron stacks well with anything. One problem though. It is VERY hard on the hair since it's essentially DHT. UNLEASHED is not.

 

[eddymerckx]

This is an accurate assessment. It's also the principle behind UNLEASHED. Alone, it won't pack on a lot of muscle, but more bio-available testosterone has many benefits -- increased strength, heightened libido, an anti estrogenic effect and increased effectiveness of other compounds as well as increased "hardness." This makes ideal either on cycle or post cycle or in-between. Of course, UNLEASHED is non suppressive but even proviron is hardly suppressive (Some say not at all, but I'd challenge that). Proviron stacks well with anything. One problem though. It is VERY hard on the hair since it's essentially DHT. UNLEASHED is not.

+1 --proviron makes my hairline retreat faster then the French

 

[sensational]

Ok, thanks for all the info fella's. I don't have a problem with male pattern baldness, got lucky in that respect.

 

[gjohnson5]

Actually

Something that is also said about hormone release is that elevated levels of estrogen in the blood lead to increased SHBG release from the liver. If Proviron binds to aromatase at a higher affinity then testosterone , then this would mean that there would be less circulating estrogen in the blood and as a consequence less SHBG.

I want to see evidence however that proviron binds to aromatase or SHBG at a higher affinity then testosterone. ALot of this is Dan Duchaine "experiment on myself" type stuff instead of clinical work

 

[eddymerckx]

Actually

Something that is also said about hormone release is that elevated levels of estrogen in the blood lead to increased SHBG release from the liver. If Proviron binds to aromatase at a higher affinity then testosterone , then this would mean that there would be less circulating estrogen in the blood and as a consequence less SHBG.

I want to see evidence however that proviron binds to aromatase or SHBG at a higher affinity then testosterone. ALot of this is Dan Duchaine "experiment on myself" type stuff instead of clinical work

found one--old and not on humans and i cannot remember my username to get the whole article and cite check....

Endocrinology, Vol 114, 2100-2106, Copyright © 1984 by Endocrine Society

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
T Saartok, E Dahlberg and JA Gustafsson


It is unclear whether anabolic steroids act on skeletal muscle via the androgen receptor (AR) in this tissue, or whether there is a separate anabolic receptor. When several anabolic steroids were tested as competitors for the binding of [3H]methyltrienolone (MT; 17 beta- hydroxy-17 alpha-methyl-4,9,11-estratrien-3-one) to the AR in rat and rabbit skeletal muscle and rat prostate, respectively, MT itself was the most efficient competitor. -1 alpha Methyl-5 alpha- dihydrotestosterone (1 alpha-methyl-DHT; mesterolone) bound most avidly to sex hormone-binding globulin (SHBG) [relative binding affinity (RBA) about 4 times that of DHT]. Some anabolic-androgenic steroids bound strongly to the AR in skeletal muscle and prostate [ RBAs relative to that of MT: MT greater than 19-nortestosterone ( NorT ; nandrolone) greater than methenolone (17 beta-hydroxy-1-methyl-5 alpha-androst-1-en- 3-one) greater than testosterone (T) greater than 1 alpha-methyl-DHT]. In other cases, AR binding was weak (RBA values less than 0.05): stanozolol (17 alpha-methyl-5 alpha- androstano [3,2-c]pyrazol-17 beta- ol), methanedienone (17 beta-hydroxy-17 alpha-methyl-1,4-androstadien-3- one), and fluoxymesterolone (9 alpha-fluoro-11 beta-hydroxy-17 alpha- methyl-T). Other compounds had RBAs too low to be determined (e.g. oxymetholone (17 beta-hydroxy-2-hydroxymethylene-17 alpha-methyl-5 alpha-androstan-3-one) and ethylestrenol (17 alpha-ethyl-4- estren -17 beta-ol). The competition pattern was similar in muscle and prostate, except for a higher RBA of DHT in the prostate. The low RBA of DHT in muscle was probably due to the previously reported rapid reduction of its 3-keto function to metabolites, which did not bind to the AR [5 alpha-androstane-3 alpha, 17 beta-diol and its 3 beta-isomer (3 alpha- and 3 beta-adiol, respectively)]. Some anabolic-androgenic steroids (only a few synthetic) bound to SHBG (1 alpha-methyl-DHT much greater than DHT greater than T greater than 3 beta-adiol greater than 3 alpha- adiol = 17 alpha-methyl-T greater than methenolone greater than methanedienone greater than stanozolol). The ratio of the RBA in rat muscle to that in the prostate (an estimate of the myotrophic potency of the compounds) was close to unity, varying only between about 0.4 and 1.7 in most cases.(ABSTRACT TRUNCATED AT 400 WORDS)

 

[sensational]

So, say for 500 mg of test 25 mg of proviron ED would suffice? What about for 1000mg?

I am kind of after a gradated scale here, if such a thing is possible.

 

[eddymerckx]

So, say for 500 mg of test 25 mg of proviron ED would suffice? What about for 1000mg?

I am kind of after a gradated scale here, if such a thing is possible.

i am happy on 50 (headaches at 75) no matter what my cycle--but at 1 gram, proviron is like taking a knife to a gun fight.

 

[sensational]

i am happy on 50 (headaches at 75) no matter what my cycle--but at 1 gram, proviron is like taking a knife to a gun fight.

This is simply for binding to SHBG, I wouldn't use it as the sole means for controlling estrogenic sides.

 

[melochai]

an old thread but I noticed it while searching... I was kind of thinking that Masteron would have similar effects to the Proviron, possibly more beneficial though... any thoughts ?