Disposition and Pharmacokinetics of [14C]Finasteride After Oral Administration in Humans

The user experienced a significant drop in libido and erectile issues after increasing their finasteride dosage, combining oral and topical treatments. They plan to take a break and resume using a lower concentration of topical finasteride to manage side effects.

A 28-year-old male using only oral finasteride 1mg since May 15, 2024, reports no side effects and significant hair improvement. He plans to continue finasteride for three more months and is considering adding D3+K2 drops, zinc, folate, and magnesium glycinate.

Charts show how long Finasteride and Dutasteride stay in the blood, explaining why 0.5 mg Finasteride is less effective than 1 mg. Dutasteride accumulates over time, leading to gradual results compared to the immediate effects of Finasteride.

The user is on Finasteride for hair loss, taking 0.5mg daily, and plans to reduce the dose to 0.25mg while making lifestyle changes to lower prolactin, SHGB, and cortisol. They will retest in 90 days to assess progress and are open to advice.

Finasteride can affect hormone levels within two weeks, and a break of several weeks is recommended for baseline results. Monitoring E2 and testosterone is suggested to assess the risk of gynecomastia.

Finasteride's impact on fertility is discussed, with users sharing experiences of conceiving while on the medication. Concerns about long-term safety are also mentioned.