Salbutamol Use in Symptomatic Infants

Efficacy and Recommendations

The American Thoracic Society recommends that salbutamol should be restricted to symptomatic infants with obvious bronchospasm, and is not recommended for routine use in all infants due to variable response and potential side effects 1, 2
Salbutamol has shown variable effectiveness in infants, with response primarily dependent on symptom status and presence of lung function abnormalities 1, 3

For symptomatic infants requiring treatment, the American Academy of Pediatrics recommends a dose of 200 μg of salbutamol via metered-dose inhaler (MDI) with spacer, as it has shown improvements in compliance and resistance 1
The American College of Chest Physicians recommends that for infants weighing less than 20 kg, a dose of 2.5 mg of salbutamol via nebulizer is effective, while for children weighing more than 20 kg, a dose of 5 mg is recommended 4, 5

For infants under age 6 with upper respiratory infections requiring anesthesia, the American Society of Anesthesiologists recommends that nebulized salbutamol (2.5 mg for <20 kg, 5 mg for >20 kg) administered 30 minutes before induction can reduce perioperative respiratory complications by approximately 50% 6, 5
In ventilated infants with chronic lung disease, repeated doses of salbutamol have been associated with improvements in static compliance, but trials have not demonstrated long-term outcome benefits 1, 2

The American Academy of Pediatrics recommends monitoring heart rate, respiratory rate, and oxygen saturation when administering salbutamol to infants 4
Potential side effects of salbutamol include tachycardia (especially with intravenous administration) 1, 3

Infants with chronic lung disease of infancy (CLDI) may demonstrate bronchodilator responsiveness as young as 3 days of age, with 20-30% decreases in airway resistance reported, according to the American Thoracic Society guidelines 7
Increased metabolic expenditure in infants who already have elevated work of breathing can occur with salbutamol use, as noted in the American Journal of Respiratory and Critical Care Medicine 7