Bret said: "Lexapro is actually an updated version of an older anti-depressant called Celexa. Escitalopram helps to restore the brain's chemical balance by increasing the amount of serotonin, a natural substance in the brain that may become unbalanced and cause depression or anxiety. Lexapro is an antidepressant in a group of drugs called selective serotonin reuptake inhibitors. If left untreated, can cause major problems in your life. Lexapro is used to treat depression and generalized anxiety disorder. Escitalopram is a selective serotonin reuptake inhibitors. If Lexapro side effects occur. If you are the type of person who likes to take action when you discover something that will profoundly change your life in positive ways, then Lexapro is for you. There have been some complaints about it, like its alleged contributions to weight gain and its high price."