For people that lost a ton of hair on rogaine, I don't think it was the rogaine that caused it, but that you were going to lose it regardless. I have been on propecia and rogaine for over 2 years and have continued to lose hair. I had very little hair loss when I started propecia and rogaine and over the past 2 years my hair has gone to sh*t. Is my hair getting especially worse in the areas I am applying rogaine? Yes, but there is a reason I was focusing on those areas. I am also thinning all over my head now, which I don't apply rogaine everywhere (just hairline and vertex), so I think I was going to lose it anyway, just I am not a responder to either rogaine or propecia.
I am kind of tempted to quit them both though, as I feel I am wasting my money on them. Issue is, I have no idea if my hair loss is going to skyrocket if I quit them. Doubt it for rogaine at least though.