The US Food and Drug Administration has approved the use of Roflumilast in the treatment of chronic obstructive pulmonary disease (COPD)

Clinical trials of the drug involved more than 1500 patients older than 40 years of age, all of whom were suffering from chronic bronchitis during the prior year.
The FDA said that while the drug can be used to treat the flares of COPD, it has not yet approved for the treatment of another form of the disease known as primary emphysema.
Source-Medindia