If you are talking about Exemestane, I take that also. I feel like someone threw my brain out the window. My memory is atrocious and it's quite embarrassing and frustrating. I also get upset easily. I am 70 years old and hopefully, this is not age related as I have to wonder sometimes if I am getting dementia also. I was on Anastrozole first and changed because I was so emotional. But, to be honest, they all mess with your hormones so there probably isn't much of a difference. I am also gaining weight on this.