finasteride (proscar propecia)
Finasteride, known by brand names like Proscar and Propecia, is a medication primarily used to treat conditions related to the prostate gland in men and male pattern hair loss. For treating an enlarged prostate (benign prostatic hyperplasia), it works by reducing levels of DHT, a hormone that causes the prostate to grow. As Propecia, finasteride helps in hair regrowth by inhibiting DHT from binding to receptors in hair follicles, preventing their shrinkage and promoting new growth. It's important to note that while effective for many, individual responses can vary, and it may take several months to see results. Regular use is necessary to maintain its benefits, as discontinuation can lead to a gradual return of symptoms or hair loss. Always consult with a healthcare provider before starting this medication to discuss potential side effects and suitability.