Interesting. I took prozac a view years back and it didn't do much for me, but I wonder if I was on too low of a dose (20mg). Can I ask what strength your brother is on? Also, I'll consider asking my Dr. about Vyvanse. I was diagnosed a long time ago with ADHD but haven't been taking meds because I don't like Adderall... something about taking an amphetamine for the rest of my life doesn't fit well with my generally sports / physically active lifestyle.