fda[ oral finasteride; compounding; side-effects

FDA alerts of potential risks associated with compounded topical finasteride products

* FDA has become aware of reports of adverse events associated with the use of compounded topical finasteride. There were 32 cases reported to the FDA Adverse Event Reporting System between 2019 and 2024. Absorption of finasteride through the skin into the bloodstream is expected, and the...
- madman
- Thread
- Jun 7, 2025
- fda[ oral finasteride; compounding; side-effects
- Replies: 1
- Forum: Testosterone Side Effect Management

TRT Hormone Predictor Widget

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.

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