philly, instead of insulting people on this forum, you could try posting a link to that so called study you found (mind you, all the studies available to the public are not at all accurate).
Taking more than 5 mg a day or repeating the same dosage multiple times a day would not be better in terms of DHT inhibition,so Ive heard on this forum not only from beaner,who has a significant amount of posts(possibly he has been on the forum for longer so he has read more) but also from other more veteran forum members, i was unable to find those threads.
http://www.rxlist.com/cgi/generic3/propecia_cp.htm
From this reference, finasteride works primarily on the Type II
isozyme of the 5-alpha reductase. Here is a quote:
"In humans, the mechanism of action of finasteride is based on its
preferential inhibition of the Type II isozyme. Using native tissues
(scalp and prostate), in vitro binding studies examining the potential
of finasteride to inhibit either isozyme revealed a 100-fold
selectivity for the human Type II 5a-reductase over Type I isozyme
(IC50=500 and 4.2 nM for Type I and II, respectively). For both
isozymes, the inhibition by finasteride is accompanied by reduction of
the inhibitor to dihydrofinasteride and adduct formation with NADP+.
The turnover for the enzyme complex is slow ([half-life] approximately
30 days for the Type II enzyme complex and 14 days for the Type I
complex)."
This means, as one commentator stated, that the half-life of the
enzyme after long term exposure to finasteride is approximately 30
days.
And if you rely so much on studies here's this, it basically tells you that finasteride wont work better if u take more than once a day:
http://www.fda.gov/cder/foi/label/2001/20788s003lbl.pdf