<p>Undesirable effects which have been associated with this inhaler during clinical development are given in the table below, listed by system organ class. The following frequency categories form the basis for classification of the undesirable effects as: very common (&ge;1/10), common (&ge;1/100 and &lt;1/10), uncommon (&ge;1/1,000 and &lt;1/100), rare (&ge;1/10,000 &lt; 1/1,000), very rare (&lt;1/10,000) and not known (cannot be estimated from the available data). Within each frequency grouping, undesirable effects are presented in order of decreasing seriousness.</p>