Heya! I started taking Aubagio in December 2012. My hair thinned out really badly at first... it came good for a while and then around the 6 month mark it started shedding again.
In the last 3 months though, it's FINALLY back to normal. I cut my hair off to shoulder length, dyed it a bit darker so it looks nice and thick. I have heaps of new growth so I don't think it's done any permanent damage. It was awful for a while though... for me it was one thing to feel sick, but I hated "looking" different, especially being a (relatively) young woman!
Happy I stuck it out now though as the treatment really suits my lifestyle. Good luck... happy to help if you have any other questions