Abstract:
Improved use of selective null2 sympathomimetic bronchodilator drugs in the therapy of obstructive or inflammatory airways disease, e.g. asthma, comprises use in enantiomeric rather than conventional racemic form. The improved use reduces occurrence of side effect, e.g. exacerbation of basal disease status or compromise or deterioration of lung function.
Abstract:
A method and composition are disclosed utilizing the pure (R,R) isomer of formoterol, which is a potent bronchodilator with reduced adverse effects, a low incidence of the development of tolerance and an increased duration of action, as compared to racemic formoterol.