Took 30mg Adderall XR at 1130am - it's 130pm now and I was wondering if I would be able to take Xanax.

I know I am ABLE to, because my Dr. wouldn't prescribe them if they were dangerous together - but how would I feel on both at the same time? Since Adderall XR is the extended release, am I gonna need to take more xanax to get the relaxed feeling of calm i want?