Asthma drug market focuses on quick-relief and long-term control meds; market driven by asthma prevalence, research advancements, and improved diagnostics; projected to reach $64.6 billion by 2033; major companies include Abbott, Merck, GSK, Novartis, Johnson & Johnson, Bristol-Myers Squibb, Sanofi, Pfizer, Teva, and AbbVie.