bubka said:you would probably notice within the first month, as it only takes a few days to lower your ability to produce DHT
beaner said:In the beginning finasteride causes a spike in testosterone, due to the prevention of binding to 5ar and conversion to DHT...Once the test. levels normalize you should see a lessening of the problem.
well, yeah, but in terms of sides, he would not notice within a few hoursBryan said:bubka said:you would probably notice within the first month, as it only takes a few days to lower your ability to produce DHT
Just a few hours, actually...
Bryan
first 4 weeks.ANDREW_J_I said:^beaner, if the test levels go down after the initial boost, does that mean thise is the point when u may witness any side effects which are going to occur?
i been on finasteride for 7 weeks almost. when is the most common time to witness possible side effects of finasteride?
Bryan said:beaner said:In the beginning finasteride causes a spike in testosterone, due to the prevention of binding to 5ar and conversion to DHT...Once the test. levels normalize you should see a lessening of the problem.
Where'd you get the idea that it causes only a "spike" at the beginning, and then "normalizes" afterwards? Those are almost certainly permanent effects (as long as you continue taking the drug, of course).
Bryan
beaner said:Don't know really....I got all my info pretty much from these boards...I'm sure I read that somewhere, but I could be wrong....or I guess if you're asking me that question, I am wrong. I thought I may have read that once serum test. increases due to 5ar inhibition, your body would actually start producing less to balance it out to pre finasteride levels.
Bryan said:beaner said:Don't know really....I got all my info pretty much from these boards...I'm sure I read that somewhere, but I could be wrong....or I guess if you're asking me that question, I am wrong. I thought I may have read that once serum test. increases due to 5ar inhibition, your body would actually start producing less to balance it out to pre finasteride levels.
It's ok, a LOT of people seem to make that same assumption, and it's one I've been speaking out against for a long time, probably without notable success!![]()
Serum testosterone does in fact increase as a result of 5a-reductase inhibition, but probably not for the reason that most people think. DHT is a player in the brain-gonadal feedback loop that regulates testosterone production, so when the brain sees a sharp reduction in DHT, it sends a chemical signal to the testes to start making more testosterone. Voila! That's why there's more testosterone being produced, and more in the bloodstream! It's a true upregulation of testosterone production.
Bryan
Bryan said:Serum testosterone does in fact increase as a result of 5a-reductase inhibition, but probably not for the reason that most people think. DHT is a player in the brain-gonadal feedback loop that regulates testosterone production, so when the brain sees a sharp reduction in DHT, it sends a chemical signal to the testes to start making more testosterone. Voila! That's why there's more testosterone being produced, and more in the bloodstream! It's a true upregulation of testosterone production.
triton2 said:But, at the same time, due to the fact that there's less DHT, estrogen begins to be more active and produces downregulation of testosterone production.
triton2 said:So I think it's a matter of knowing which effect is more prevalent:
1) Upregulation of the HPTA axis due to DHT lowering
2) Downregulaion of the HPTA axis due to Estrogen "running free"
Perhaps there may be a tie and what's really raising T is that 10% of T that doesn't go thru the 5ar pathway anymore.
