The background to Duovent.
The tone of bronchial muscle depends on the balance between the activity of the parasympathetic and sympathetic divisions of the autonomic nervous system. It is possible to produce broncho-dilatation either by stimulating the sympathetic pathway with sympathomimetic agents such as fenoterol or inhibiting the action of the parasympathetic system using anti-cholinergic agents such as ipratropium bromide.
D000336:Aerosols; D001286:Atropine Derivatives / Q000627:therapeutic use*; D004338:Drug Combinations / Q000494:pharmacology / Q000627:therapeutic use; D004357:Drug Synergism; D004983:Ethanolamines / Q000627:therapeutic use*; D005280:Fenoterol / Q000494:pharmacology / Q000627:therapeutic use*; D005541:Forced Expiratory Volume; D006801:Humans; D009241:Ipratropium / Q000494:pharmacology / Q000627:therapeutic use*; D008173:Lung Diseases, Obstructive / Q000188:drug therapy*
D000336:Aerosols; D001286:Atropine Derivatives; D004338:Drug Combinations; D004983:Ethanolamines; C030809:fenoterol, ipratropium drug combination; D005280:Fenoterol; D009241:Ipratropium