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napsgear
genezapharmateuticals
domestic-supply
puritysourcelabs
Peptide ProUGFREAKeudomestic
napsgeargenezapharmateuticals domestic-supplypuritysourcelabsPeptide ProUGFREAKeudomestic

Letrozole

I have heard that letrozole is the most cost effective estro blocker being that you only need to dose it in tiny increments to get maximal effects.
 
An interesting experiment was conducted on a single mega dose of letrozole...
Twenty one days after a single mega dose of 30 mg of Letrozole, serum testosterone level was still increased by 77% above normal.
Pretty intriguing!!!
 
An interesting experiment was conducted on a single mega dose of letrozole...
Twenty one days after a single mega dose of 30 mg of Letrozole, serum testosterone level was still increased by 77% above normal.
Pretty intriguing!!!

Very interesting but you can be the tester for that one ;)
 
Haven't used letro in a few years. Grabbed a bottle from the old chemical needs and dosed it at 0.5 eod or e3d can't remember but it knocked out my gyno quick! Didn't taste too good though lol
 
Letrozole once a week normalizes serum testosterone in obesity-related male hypogonadism.

AuthorsLoves S, et al. Show all Journal
Eur J Endocrinol. 2008 May;158(5):741-7. doi: 10.1530/EJE-07-0663.

Affiliation
Abstract
OBJECTIVE: Isolated hypogonadotropic hypogonadism (IHH) is frequently observed in severely obese men, probably as a result of increased estradiol (E(2)) production and E(2)-mediated negative feedback on pituitary LH secretion. Aromatase inhibitors can reverse this process. This study evaluates whether letrozole once a week can normalize serum testosterone in severely obese men and maintain its long term effect.

DESIGN: Open, uncontrolled 6-month pilot study in 12 severely obese men (body mass index>35.0 kg/m(2)) with obesity-related IHH and free testosterone levels <225 pmol/l, treated with 2.5 mg letrozole once a week for 6 months.

RESULTS: Six weeks of treatment reduced total E(2) from 123+/-11 to 58+/-7 pmol/l (P<0.001, mean+/-s.e.m.), and increased serum LH from 4.4+/-0.6 to 11.1+/-1.5 U/l (P<0.001). Total testosterone rose from 5.9+/-0.5 to 19.6+/-1.4 nmol/l (P<0.001), and free testosterone from 163+/-13 to 604+/-50 pmol/l (P<0.001). Total testosterone rose to within the normal range in all subjects, whereas free testosterone rose to supraphysiological levels in 7 out of 12 men. The testosterone and E(2) levels were stable throughout the week and during the 6-month treatment period.

CONCLUSION: Letrozole 2.5 mg once a week produced a sustained normalization of serum total testosterone in obese men with IHH. However, free testosterone frequently rose to supraphysiological levels. Therefore, a starting dose <2.5 mg once a week is recommended.

It seems to me that once a week dosing would be a estro roller coaster ride.
 
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