title: COPD and beta-blockers.
mesh_terms: D000318:Adrenergic beta-Agonists / Q000627:therapeutic use; D000319:Adrenergic beta-Antagonists / Q000009:adverse effects* / Q000627:therapeutic use; D000403:Airway Resistance / Q000187:drug effects; D001986:Bronchial Spasm / Q000139:chemically induced; D004347:Drug Interactions; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000150:complications*; D013999:Timolol / Q000009:adverse effects
chemical_list: D000318:Adrenergic beta-Agonists; D000319:Adrenergic beta-Antagonists; D013999:Timolol