Recent studies suggest an increased risk of Paxil birth defects for pregnant women during their first trimester. The excessive worry and anxiety can last many years, interfering with their daily lives. Social anxiety disorder is an excessive, persistent fear and avoidance of social or performance situations. The preferred treatment if depression or other mood disorders that are suspected and determined by the health care providers who treat such patients. Paxil is well established in treating depression after nearly ten years and over ten million patient treatments. This age group - where chronic depression can affect a large proportion of this population.