|R - Respiratory System|
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.
|R03DX - Other Systemic Drugs for Obstructive Airway Diseases|
This group comprises preparations, which cannot be classified in the preceding groups.
Interleukin inhibitors used in asthma are classified in this group.