R03DOther Systemic Drugs For Obstructive Airway Diseases↑ R03SubgroupsXanthinesR03DAXanthines and adrenergicsR03DBLeukotriene receptor antagonistsR03DCOther systemic drugs for obstructive airway diseasesR03DXSubstancesmontelukastR03DC03theophyllineR03DA04roflumilastR03DX07fenspirideR03DX03omalizumabR03DX05zafirlukastR03DC01aminophyllineR03DA05mepolizumabR03DX09benralizumabR03DX10reslizumabR03DX08tezepelumabR03DX11theobromineR03DA07