I developed PFS (post finasteride syndrome) from taking finasteride for hair loss for about 24 months. I got off the drug over 3 years ago and I still have permanent sexual dysfunction, genital numbness, anhedonia, no motivation, executive function, extreme brain fog and memory problems. I am an entirely different person than i used to be. Absolutely devastating, I also became infertile from that drug and I am only 32 and unmarried. This started when I was 28. I am also a pharmacist now (I was about to start school when I developed side effects that never went away. I am good friends with an anesthesiologist who developed this same permanent condition just from taking saw palmetto for a few months. He has been suffering for almost 5 years.