Global Breathing Disorder Treatment Market is segmented By Drug Class (Antimicrobial, Corticosteroid, Bronchodilator, Antihistamines, Respiratory stimulants, Others), By Indication (Chronic Obstructive Pulmonary Disease (COPD), Asthma, Cystic Fibrosis, Pulmonary Hypertension, Lung Cancer, Allergic Rhinitis, Idiopathic Pulmonary Fibrosis, Others), By Distribution Channel (Hospital Pharmacies, Retail Pharmacies, Online Pharmacies)