A Rapid, Simple, Specific Liquid Chromatographic–Electrospray Mass Spectrometry Method for the Determination of Finasteride in Human Plasma and Its Application to Pharmacokinetic Study

Finasteride and Nizoral shampoo with Ketoconazole are used for hair loss treatment. Liquid Chromatography–Mass Spectrometry (LC-MS) is recommended over Enzyme-Linked Immunosorbent Assay (ELISA) for more accurate DHT testing.

The user is taking finasteride 1mg from Blink pharmacy, sourced from Ascend Laboratories, with no noticeable side effects after 5 months. They also use Kirkland foam minoxidil, micro needling, and various supplements for hair treatment.

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.

A 26-year-old has been using finasteride for over two years, initially at 1.25mg daily and later at 5mg weekly, resulting in stable hair condition with some regrowth and minimal side effects. The user reports high libido and a protein and vegetable-heavy diet, with initial watery semen as the only side effect.

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.

Topical finasteride results in plasma levels 100 times lower than oral finasteride, potentially reducing systemic side effects. Users report similar efficacy with fewer side effects, suggesting a preference for topical application.