I personally just switched to the newly generic propecia after taking name brand for 6 and a half months and I noticed shedding almost immediately. I've been on it for a little more than 2 weeks and it is definitely not in my head as I was not shedding even in the slightest before. I even had amazing regrowth in the past 2 months to the point where I had stopped worrying about my hairless. Now my hair looks thinner overall, especially in the back. Now I realize it is possible that I just entered a shedding phase that happened to start right when I switched because technically it is the exact same dose I had been on, 1mg finasteride. But for my own sanity I'm biting the bullet and getting back on name brand tomorrow. It worked really well and that's all that matters to me. Good luck