title: Tiotropium step-up therapy in asthma.
authors.forename: David R
authors.initials: DR
authors.lastname: Miller
authors.forename: Mahendran
authors.initials: M
authors.lastname: Chetty
authors.forename: Graeme P
authors.initials: GP
authors.lastname: Currie
mesh_terms: D000280:Administration, Inhalation; D000318:Adrenergic beta-Agonists / Q000627:therapeutic use; D000420:Albuterol / Q000031:analogs & derivatives* / Q000627:therapeutic use; D001249:Asthma / Q000150:complications / Q000188:drug therapy*; D001993:Bronchodilator Agents / Q000627:therapeutic use*; D018680:Cholinergic Antagonists / Q000627:therapeutic use; D004359:Drug Therapy, Combination; D005938:Glucocorticoids / Q000627:therapeutic use*; D006801:Humans; D009241:Ipratropium / Q000627:therapeutic use; D000068299:Salmeterol Xinafoate; D012602:Scopolamine Derivatives / Q000627:therapeutic use*; D000069447:Tiotropium Bromide
chemical_list: D000318:Adrenergic beta-Agonists; D001993:Bronchodilator Agents; D018680:Cholinergic Antagonists; D005938:Glucocorticoids; D012602:Scopolamine Derivatives; D000068299:Salmeterol Xinafoate; D009241:Ipratropium; D000420:Albuterol; D000069447:Tiotropium Bromide