Is xanax contraindicated in Asthma / Copd exacerbation

Is there any data that restricts the use of low dose xanax (0.5mg) in mild asthma exacerbations (not requiring o2) Can they still take to help them sleep. Is it a complete contraindication?
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Tags: Pulmonary / Critical Care Medicine Source Type: forums