Todd - at the beginning of my regime i used nizoral 3 or 4 times a week, mainly as my scalp was very itchy, but it seemed to dry my scalp further and cause more irritation plus after using it for a bit is when i started to see the thinning, coincidence probably but i got off it, it did make my hair very very dry so i moved onto herbal and non offensive shampoos that were gentler on the hair, also tried caffeine shampoo, not sure how effective that was.
i think different people react better to different things, and i think nizoral for me just didnt work at the time, i may try jump on it again sometime and i will let you know how that works out, thanks!