* Onset of action: Nebulization: 2–8 days; Inhalation: 24 hours; Nasal: 10 hours * Peak effect: Nebulization: 4–6 weeks; Inhalation: 1–2 weeks * Distribution: 2.2-3.9 L/kg * Protein binding: 85% to 90% * Metabolism: Hepatic via CYP3A4 to two metabolites: 16 alpha-hydroxyprednisolone and 6 beta-hydroxybudesonide; minor activity<unk>  is extensively metabolized in first pass, resulting in a low bioavailability and systemic effects * Bioavailability: Capsule: 9% to 21%; Nebulization: 6%; Inhalation: 6% to 13% * Half-life elimination: 2–3.6 hours * Time to peak: Capsule: 0.5–10 hours (variable in Crohn's disease); Nebulization: 10–30 minutes; Inhalation: 1–2 hours; Tablet: 7.4-19.2 hours * Excretion: urine (60%) and feces as metabolites.
Budesonide
Fluticasone furoate
Flumetasone
Fluticasone
Fluticasone propionate
Clobetasone
Diflorasone diacetate
Theophylline