Additionally , theophylline may have a role in those who do not respond to other measures .
For those with type 2 respiratory failure ( acutely raised CO levels ) non-invasive positive pressure ventilation decreases the probability of death or the need of intensive care admission .
Theophylline may have a role in those who do not respond to other measures .
For those with type 2 respiratory failure ( acutely raised CO levels ) non-invasive positive pressure ventilation decreases the probability of death or the need of intensive care admission .