Inhaled antiinfectives are classified in ATC group J - Antiinfectives for systemic use.
R03 - Drugs for Obstructive Airway Diseases
R03D - Other Systemic Drugs for Obstructive Airway Diseases
Theophyllines are classified in this group. Other respiratory stimulants are classified in R07AB - Respiratory stimulants. Corticosteroids for systemic use, see H02. Sympathomimetics for systemic treatment of rhinitis, see R01BA.
This group comprises mainly the xanthines. The DDDs for these substances are based on treatment of obstructive lung diseases.
R03DC - Leukotriene Receptor Antagonists
Combinations with antihistamines (R06A) are classified in this group.