[The significance of nonspecific bronchial hyperreactivity]

The bronchial hyperreactivity is the cause of dyspnea in asthmatic subjects. The bronchial hyperreactivity is caused by the allergic "late-reaction". Inhalative bronchial challenge tests by metacholine prove bronchial hyperreactivity. The therapy of the bronchial hyperreactivity consists in systemic and local corticosteroids and dinatriumcromoglycate. One of these substances should be part of the basic therapy of every asthmatic patient.