title: Combined vs. sequential vs. single-entity therapy.
mesh_terms: D000420:Albuterol / Q000627:therapeutic use; D000628:Aminophylline / Q000627:therapeutic use; D001249:Asthma / Q000188:drug therapy; D001507:Beclomethasone / Q000627:therapeutic use; D004359:Drug Therapy, Combination; D004809:Ephedrine / Q000627:therapeutic use; D004837:Epinephrine / Q000627:therapeutic use*; D005100:Expectorants / Q000627:therapeutic use; D006634:Histamine H1 Antagonists / Q000627:therapeutic use; D006801:Humans; D009241:Ipratropium / Q000627:therapeutic use; D010634:Phenobarbital / Q000627:therapeutic use; D013726:Terbutaline / Q000627:therapeutic use; D013806:Theophylline / Q000627:therapeutic use
chemical_list: D005100:Expectorants; D006634:Histamine H1 Antagonists; D000628:Aminophylline; D013806:Theophylline; D004809:Ephedrine; D009241:Ipratropium; D001507:Beclomethasone; D013726:Terbutaline; D000420:Albuterol; D004837:Epinephrine; D010634:Phenobarbital