Lexapro side effects, like dry mouth and decreased appetite, are common in the first few weeks. Lexapro may help improve symptoms within the first two weeks, but it typically takes longer for full effects. Lexapro is a prescription medicine used to treat the symptoms of major depressive disorder and generalized anxiety disorder. Learn about side effects, drug interactions, warnings, precautions, overdose, and others Medscape - Depression-specific dosing for Lexapro (escitalopram), frequency-based adverse effects, comprehensive interactions, contraindications, pregnancy & lactation schedules, and cost. 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, also known by its brand name, Lexapro, is a selective serotonin reuptake inhibitor (SSRI). It's a first-choice antidepressant to treat depression and anxiety in adults and children. 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. The use of MAOIs intended to treat psychiatric disorders with Lexapro or within 14 days of stopping treatment with Lexapro is contraindicated because of an increased risk of serotonin syndrome. Lexapro is the brand name of the medication escitalopram. It treats depression and anxiety by increasing the amount of serotonin in your brain. Escitalopram, sold under the brand names Lexapro and Cipralex, among others, is an antidepressant medication of the selective serotonin reuptake inhibitor (SSRI) class. [8] Find patient medical information for Escitalopram (Lexapro) on WebMD including its uses, side effects and safety, interactions, pictures, warnings, and user ratings.