I was given Perrigo generic Test Cyp instead of Pfizer Test in error because my doctor forgot to put "no substitute" on the prescription and I didn't check right away after picking it up.
I started feeling off about a week after switching (had no idea it wasn't Pfizer Test anymore so placebo is...
Hi,
Since Securetabs didn´t accept orders at the time I wanted to order I decided to order from another at random online shop. Unfortunately I received a reg letter from the postoffice saying that the parcel has been kept by the customs. So now I need to send a commercial invoice and documents...
This article points out the wisdom of making phone calls or research on the prescription items you want to buy. Even on generics prices can vary by a factor of 10 times. Yes you heard right the same drug at Costco for $26.00 can be gotten at Rite Aid for $260.
Buyer beware but do not let the...
Predict estradiol, DHT, and free testosterone levels based on total testosterone
⚠️ Medical Disclaimer
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.
ℹ️ Input Parameters
Normal range: 300-1000 ng/dL
Predicted Hormone Levels
Enter your total testosterone value to see predictions
Results will appear here after calculation
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.
DHT
Dihydrotestosterone is a potent androgen derived from testosterone. Affects hair growth,
prostate health, and masculinization effects.
Free Testosterone
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.
