Cromolyn sodium. The Asthma Center.
Cromolyn, theophylline and phosphodiesterase inhibitors. AAAAI Allergy & Asthma Medication Guide. American Academy of Allergy Asthma and Immunology. https://www.aaaai.org/conditions-and-treatments/drug-guide/cromolin-theophylline. Updated April 2018. Accessed July 2019.
Allergy medicine for children. American Academy of Pediatrics. https://www.healthychildren.org/English/health-issues/conditions/allergies-asthma/Pages/Allergy-Medicines.aspx. November 21, 2015. Accessed July 2019.