Cromolyn, Theophylline and Phosphodiesterase Inhibitors Share this page: Last Updated March 2026 Generic Name Brand Name Use Usual Dosage Cromolyn Sodium Generic Cromolyn Nebulizer Solution Prevent and reduce the symptoms of asthma. Age 2 and older. One 20 mg unit-dose vial 4 times a day. Ohtuvayre Ensifentrine Ensifentrine Website Maintenance treatment of COPD Twice daily inhalation via nebulizer for the treatment of COPD. Roflumilast Daliresp Daliresp Website Maintenance treatment of COPD 500 mg once a day Theophylline, Sustained release Tablets and Capsules Multiple products: Uniphyl As well as generic versions Long-term control and prevention of symptoms, especially nocturnal symptoms. Any age. Variable in each individual based upon weight. PDF Version of Chart Find out more about asthma. Share this page: