US respiratory drug market was around $15.0 billion in 2018 and is anticipated to grow at a substantial rate of 7.6% during the forecast period. The rising prevalence of chronic respiratory diseases, increasing geriatric population, and technological advancement are the major factors augmenting the growth of the respiratory drug market in the US. Asthma is a chronic inflammation of the lung airways that causes breathlessness and coughing. The number of people with asthma grows every year in ... Read more