[Routes of administration of drugs for severe acute asthma]

Beta2-mimetics represent the primary treatment for acute severe asthma. Their route of administration are nebulizer inhalation and inhalation chamber, or direct intratracheal route in patients receiving artificial ventilation. The subcutaneous route remains useful while awaiting implementation of nebulizer routine. The intravenous route is indicated in cases of non-rapid improvement in patients' receiving inhaled treatment.