Lexapro Lexapro The antidepressant Lexapro is a member of the family of medications known as selective serotonin reuptake inhibitors (SSRIs). Lexapro offer advantages in the treatment of depression and generalized anxiety disorder.Lexapro Lexapro The antidepressant Lexapro is a member of the family of medications known as selective serotonin reuptake inhibitors (SSRIs). Lexapro offer advantages in the treatment of depression and generalized anxiety disorder.