Anastrozole - Stabilization

TDM812

Member
I have been struggling with estrogen problems for over a year. I just can’t seem to get dialed in. I was at .1 anastrozole every 3 days, and after 19 days I went high, so I adjusted to .1 every other day. That brought me down to normal after a few days, then a little low, and now high after 15 days.

Questions:

What is the stabilization time for Anastrozole?

What do you recommend for my next adjustment?

Side notes:

I take 140mg cypionate split between 2 does weekly.

My Anastrozole capsules are .1, and compounded at a legit pharmacy.
 
I have been struggling with estrogen problems for over a year. I just can’t seem to get dialed in. I was at .1 anastrozole every 3 days, and after 19 days I went high, so I adjusted to .1 every other day. That brought me down to normal after a few days, then a little low, and now high after 15 days.

Questions:

What is the stabilization time for Anastrozole?

What do you recommend for my next adjustment?

Side notes:

I take 140mg cypionate split between 2 does weekly.

My Anastrozole capsules are .1, and compounded at a legit pharmacy.

No labs - I’ve gotten pretty good at identifying high/low e2.
 
Thank you, for the insight. What do you make of me going high after 15 days? What do you think my next adjustment should be?
I would stay on your protocol for 6 weeks and then take labs. It's the only way you're going to properly adjust your meds.
 
...
What is the stabilization time for Anastrozole?

What do you recommend for my next adjustment?
...My Anastrozole capsules are .1, and compounded at a legit pharmacy.

The half-life of anastrozole is about 50 hours, so figure 8-10 days to stabilize. This half-life is a half to a third or less that of T cypionate, so at least in theory it's not easy to keep the relative levels in synch with two doses a week—though Vince's suggestion might help. There is an advantage in self-compounding, in that you can create smaller doses to take more frequently and better align the serum levels.
 

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Understanding Your Hormones

Estradiol (E2)

A form of estrogen produced from testosterone. Important for bone health, mood, and libido. Too high can cause side effects; too low can affect well-being.

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Dihydrotestosterone is a potent androgen derived from testosterone. Affects hair growth, prostate health, and masculinization effects.

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The biologically active form of testosterone not bound to proteins. Directly available for cellular uptake and biological effects.

Scientific Reference

Lakshman KM, Kaplan B, Travison TG, Basaria S, Knapp PE, Singh AB, LaValley MP, Mazer NA, Bhasin S. The effects of injected testosterone dose and age on the conversion of testosterone to estradiol and dihydrotestosterone in young and older men. J Clin Endocrinol Metab. 2010 Aug;95(8):3955-64.

DOI: 10.1210/jc.2010-0102 | PMID: 20534765 | PMCID: PMC2913038

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