"have trialed this 3 times now at different doses and regular tablets verses xl. it works good within a few days (not like ssri&#039;s which take forever), and has very few side effects that bother me.  for some reason though, i &quot;plateau&quot; and start getting jittery around 3-4 months, on all trials.  it has a lot of benefits over ssri&#039;s.  had some minor cognitive problems the first week, like forgetfulness, but it went away quickly.  i wish i could tolerate this medicine for more than a few months."