Researchers from Cornell and Stanford Universities found that common asthma inhalers are causing death. The researchers studied 19 published clinical trials involving the use of long-acting beta-agonists salmeterol (trade names Serevent and Advair) and formoterol (trade name Foradil). They found that patients were "3.5 times more likely to die from asthma and 2.5 times more likely to be hospitalized, compared to those taking a placebo."
Long-acting beta-agonists are known to "promote bronchial inflammation and sensitivity without warning." Therefore, although these asthma inhalers help to relieve asthma symptoms, they can also be detrimental by causing other serious side effects
More...
Click following
http://lungdiseases.about.com/b/a/257100.htm