Steady-State Pharmacokinetics of Oral Testosterone Undecanoate with Concomitant Inhibition of 5α-Reductase by Finasteride

The conversation discusses the use of 5-alpha-reductase inhibitors like finasteride and dutasteride for hair loss in transgender women, particularly in relation to testosterone suppression. The original poster has been using dutasteride and is considering stopping it due to undetectable testosterone levels.

A 30-year-old man experienced significant hair regrowth and improved libido after using finasteride and dutasteride for androgenetic alopecia, with no adverse effects. He plans to reduce dutasteride dosage when trying to conceive and has been using topical minoxidil since 2015.

A bodybuilder uses 1400mg testosterone weekly, 400mg equipoise, and GH, with 0.5mg dutasteride daily to stabilize hair loss and manage DHT levels. The user reports no side effects from dutasteride and finds it effective, while also discussing costs and effectiveness of other treatments like RU58841 and minoxidil.

The conversation discusses using finasteride, dutasteride, RU58841, and testosterone to combat hair loss and block DHT, with some users expressing concerns about side effects and vegan options for medication. The discussion also touches on personal experiences with hormone treatments and the desire to maintain a youthful appearance.

A 23-year-old male experienced an increase in testosterone levels after taking 1 mg of finasteride daily for six months, with no significant side effects reported. Users discussed how finasteride inhibits DHT, leading to increased testosterone, and debated the psychological versus physiological effects of the medication.

Topical androgen receptor antagonists may not be necessary if 5-AR inhibitors like finasteride or dutasteride effectively reduce DHT levels. Combining a 5-AR inhibitor with a topical androgen antagonist could potentially enhance treatment, but oral use of androgen antagonists is too risky due to severe side effects.