What are the most common side effects of salmeterol (serevent)?

Generally tolerated: Salmeterol is a long acting beta agonist (laba). Side effects of jitteriness, increased heart rate and tremor can occur. Also consider the "black box warning" of increase severe asthma attaches and asthma associated deaths. Many asthma specialists question the validity of the "black box" warnings due to shortcomings of the study and the overall almost 50% drop in asthma deaths since combo release.