What is the consensus between combining benzodiazepines with Dexedrine or Adderall (dextroamphetamine and racemic amphetamine) in resistant bipolar patients with comorbid anxiety and ADHD?

Tough question. There is no consensus that I am aware of on this issue. Patients are individuals and each case should be taken on a case by case basis. Issues to consider include prior responses to medication, substance use issues, family history, current sxs, past sxs, suicidal behavior, past psychiatric hospitalizations, etc, etc....