Learn what to expect when starting Lexapro, including how quickly it takes effect and common side effects like nausea and drowsiness. Detailed dosage guidelines and administration information for Lexapro (escitalopram oxalate). Includes dose adjustments, warnings and precautions. Lexapro is the brand name of the medication escitalopram. It treats depression and anxiety by increasing the amount of serotonin in your brain. Description Escitalopram is used to treat depression and generalized anxiety disorder (GAD). It is an antidepressant that belongs to a group of medicines known as selective serotonin reuptake inhibitors (SSRIs). These medicines work by increasing the activity of the chemical serotonin in the brain. This medicine is available only with your doctor's prescription. Learn about escitalopram (Lexapro) usage and dosing. Read the latest news and reviews about the drug as well as potential side effects and popular alternatives. Escitalopram, sold under the brand names Lexapro and Cipralex, among others, is an antidepressant medication of the selective serotonin reuptake inhibitor (SSRI) class. [8] Learn about side effects, dosage, uses, and more for Lexapro (escitalopram). It’s a prescription drug used to treat anxiety and depression in some people. Lexapro (escitalopram) is an antidepressant from the group of drugs called selective serotonin reuptake inhibitors (SSRIs) and is used to treat certain types of depression and anxiety. Escitalopram (Lexapro) treats anxiety in adults and depression in adults and some children. Dosages may vary based on your age and other factors, including your medical history and whether you. Find patient medical information for Escitalopram (Lexapro) on WebMD including its uses, side effects and safety, interactions, pictures, warnings, and user ratings.