The first thing I noticed was a small thin patch right at the front of my hairline, and six months later more of the front has thinned. I wanted to wait and see if it was just a "maturing hairline" but now I think I need to take some action. Has anyone had success on finasteride? Did it slow down the loss? How long did it take for you to notice an effect? Minoxidill isn't an option because I have a cat and it's toxic to cats.