Finasteride is one of the most common pills for hair loss, taken by tens of thousands of men in the UK. It is only available by private prescription. It works by stopping testosterone turning into ...
D'Amico AV and Roehrborn CG (2007) Effect of 1 mg/day finasteride on concentrations of serum prostate-specific antigen in men with androgenic alopecia: a randomised controlled trial. Lancet Oncol ...