Are benzodiazepines + marijuana ever a reasonable option for control of anxiety and depression?

I'm a pain doctor, not a psychiatrist. Have a young male patient with profound anxiety. Seeing a psychiatrist and psychiatrist is prescribing xanax 1mg TID PRN + "medical" marijuana + atomoxetine 60mg Q24hr Is this considered an appropriate medication combination? Not my specialty and want some opinions.
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Tags: Psychiatry Source Type: forums