| Inhaled corticosteroids (see Table 4) |
| Long-acting inhaled beta2 agonists† |
| Formoterol (Foradil Aerolizer) | DPI: 12 mcg per single-use capsule | 1 capsule every 12 hours |
| Salmeterol (Serevent) | MDI: 21 mcg per puff | 1 to 2 puffs every 12 hours |
| DPI: 50 mcg per blister | 1 blister every 12 hours |
| Combined medication |
| Fluticasone/salmeterol (Advair Diskus) | DPI: 100, 250, or 500 mcg of fluticasone with 50 mcg of salmeterol | 1 inhalation twice daily; dosage depends on severity of asthma |
| Cromolyn and nedocromil |
| Cromolyn (Intal) | MDI: 1 mg per puff | 1 to 2 puffs 3 to 4 times daily |
| | Nebulizer solution: 20 mg per ampule | 1 ampule 3 to 4 times daily |
| Nedocromil (Tilade) | MDI: 1.75 mg per puff | 1 to 2 puffs 2 to 4 times daily |
| Leukotriene modifiers |
| Montelukast (Singulair) | 4- or 5-mg chewable tablets, 4-mg packet of oral granules, 10-mg tablets | Age 12 to 23 months: 4 mg oral granules at bedtime |
| Age 2 to 5 years: 4 mg at bedtime |
| Age 6 to 14 years: 5 mg at bedtime |
| Older than 14 years: 10 mg at bedtime |
| Zafirlukast (Accolate) | 10- and 20-mg tablets | Age 7 to 11 years: 20 mg daily in divided doses (i.e., one 10-mg tablet twice daily) |
| 12 years and older: 20 mg twice daily |
| Methylxanthines‡ |
| Theophylline | Liquids, sustained-release tablets, and capsules | Starting dosage is 10 mg per kg per day: |
| Usual maximums: Age < 1 year: (0.2 x [age in weeks]) + 5 = mg per kg per day Age ≥1 year: 16 mg per kg per day |