Finasteride is an FDA-approved drug primarily used to treat benign prostatic hyperplasia (BPH) and male pattern baldness. Finasteride works by blocking the conversion of testosterone to dihydrotestosterone (DHT) in the body, helping shrink the prostate gland to prevent further hair loss in male pattern baldness. Minoxidil chewable tablets (Grow by MangoRx) contain 1mg of Finasteride. Source: MedlinePlus.gov, NHS.uk