Half-life: 8h
Metabolism: liver; CYP450: 1A2, 2E1, 3A3
Excretion: urine (10% unchanged)
Mechanism of Action: exact mechanism unknown; increases cAMP; antagonizes adenosine receptors (methylxanthine)
Theophylline
Beclomethasone
Budesonide
Fluticasone propionate
Albuterol
Salmeterol
Montelukast
Caffeine