L -adrenaline is not recommended for asthma.
For Croup (laryngotracheobronchitis), airway edema; moderate to severe:
L-epinephrine (using parenteral 1 mg/mL solution): Nebulization: 0.5 mL/kg of 1:1,000 solution (maximum dose: 5 mL) diluted in NS, may repeat dose every 20 minutes; Note: Racemic epinephrine 10 mg = 5 mg L-epinephrin
Hossam Elgnainy Selected answer as best March 22, 2024
Hegenbarth MA; American Academy of Pediatrics Committee on Drugs. Preparing for pediatric emergencies: drugs to consider. Pediatrics. 2008;121(2):433-443. doi:10.1542/peds.2007-3284 [PubMed 18245435]