Citalopram
"I went to my Primary Care physician b/c I was constantly irritated with my boyfriend and wondered if there was anything that might help make me get less irritated less often.  The doctors said he had had success with several patients improving irritability with Citalopram.  I never really felt any big change, but within a few weeks, the irritability was drastically reduced.  The anger was much more in check.  Someone else described it this way...life just seemed smoother/easier to manage.  My attitude became more positive.  I became much more content with my life overall."