Greg Kevorkian
Member
After stopping anastrazole. how long before E2 goes up?
Your estrogen will increase long before you realizes it, there is a lag time until your body will start to feel it which makes dosing anastrozole even more difficult.
I was unfortunate enough to experience the horrible E2 rebound affect, it felt like a front row seat to what a heart attack must feel like which forced me to give up on AI's entirely. The only way out for me was either taking more anastrozole trapped in an endless vicious cycle or stop TRT for a time to where there is less aromatization.
I would assume the effectiveness of the drug would be reduced earlier than 5 half lives?Arimidex has a 50 hour half life. A drug is considered to have cleared your system after five half-lives.
Depends how you define "come back". The "5 half-lives" figure just means that in theory most of the drug has been cleared by then. Because anastrozole works by competitive inhibition, as soon as concentrations start dropping more aromatase is freed up to start forming estradiol. So estradiol will start going up fairly quickly. But getting back to baseline could actually take the 5+ half-lives unless there's a surplus of aromatase. There's speculation that more aromatase is made in reaction to the inhibition, but there's no solid evidence for it as far as I know.Basically I’m suggesting that E2 would come back earlier than 5 half lives. What say you ?
...
What were your symptoms? And these symptoms were due to the elevated rebound E2?I was unfortunate enough to experience the horrible E2 rebound affect, it felt like a front row seat to what a heart attack must feel like
My heart had never raced that quickly even while coming off benzos after 30 years, no comparison.What were your symptoms?
Yes they were, it's why I chucked the AI for good. I actually tapped out and took the AI again, then stopped TRT for a week so the E2 rebound couldn't occur again in a week.And these symptoms were due to the elevated rebound E2?
Sounds horrible indeedMy heart had never raced that quickly even while coming off benzos after 30 years, no comparison.
Yes they were, it's why I chucked the AI for good. I actually tapped out and took the AI again, then stopped TRT for a week so the E2 rebound couldn't occur again in a week.
I actually believe my left ventricular dysfunction diagnosis is the result of the 10 month benzo withdrawal.
Predict estradiol, DHT, and free testosterone levels based on total testosterone
This tool provides predictions based on statistical models and should NOT replace professional medical advice. Always consult with your healthcare provider before making any changes to your TRT protocol.
Enter your total testosterone value to see predictions
Results will appear here after calculation
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.
Dihydrotestosterone is a potent androgen derived from testosterone. Affects hair growth, prostate health, and masculinization effects.
The biologically active form of testosterone not bound to proteins. Directly available for cellular uptake and biological effects.
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