asthma, maintenance
"My son has taken this medication for asthma maintenance for nearly 4 years. When he takes it consistently, he has very few asthma exacerbations. Before he was on it, he had to be hospitalized due to a severe attack and status asthmaticus. When he missed it for a few days, he had another exacerbation requiring emergency treatment. I'd say the medicine is effective for him. He has had no side effects."