I know this is an old post, but I am also 50ish and have been on Adderall for years… developed AFIB… so no more Adderall! While we’re dealing with the AFIB, I’m really really struggling with focus… I mentioned the non-amphetamine drugs to my primary care physician and will be meeting him to discuss further… has anyone in a similar situation with AFIB had any luck with Strattera or the like? Thanks! – KLT