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Selective cardiac sympathetic blockade as an adjunct to bronchodilator therapy
  1. Raymond Powles,
  2. Elliot Shinebourne,
  3. John Hamer
  1. Cardiac Department, St. Bartholomew's Hospital, London E.C.1


    It has been shown in nine asthmatic patients that practolol, a selective cardiac beta-adrenergic antagonist, successfully blocks the unwanted tachycardia and palpitation following isoprenaline inhalation without hindering the beneficial bronchodilator action of the drug. Practolol is a useful adjunct to bronchodilator therapy in the management of bronchial asthma.

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