Take this medicine only as directed by your doctor, to benefit your condition as much as possible. Learn about citalopram (Celexa) usage and dosing. Read the latest news and reviews about the drug as well as potential side effects and popular alternatives. Citalopram (Celexa) is a well-tolerated SSRI for depression. Learn about the 40mg daily dose limit due to QT prolongation and how it compares to escitalopram. Celexa (citalopram hydrobromide) used to treat the symptoms of depression. Learn side effects, dosage, drug interactions, warnings, patient labeling, reviews, and more. Citalopram, sold under the brand name Celexa among others, is an antidepressant of the selective serotonin reuptake inhibitor (SSRI) class. [7][9] It is used to treat major depressive disorder, obsessive compulsive disorder, panic disorder, and social anxiety disorder. [7] Celexa® (citalopram HBr) is an orally administered selective serotonin reuptake inhibitor (SSRI) with a chemical structure unrelated to that of other SSRIs or of tricyclic, tetracyclic, or other. Celexa (citalopram) is a medication that’s commonly prescribed for depression. It’s generally well tolerated, but it has some side effects to be aware of. Common side effects of Celexa include nausea, dry mouth, and sleep changes. Sexual side effects, such as erectile dysfunction, are also possible. Overview: Citalopram is used to treat depression. It is thought to work by increasing the amount of a natural chemical called serotonin in the brain. Common side effects may include nausea, changes. Citalopram is a prescription medicine used in adults to treat depression. Citalopram is also used to treat major depressive disorder (MDD). Citalopram belongs to a class of antidepressants called selective serotonin reuptake inhibitors (SSRIs). Celexa is a selective serotonin reuptake inhibitor (SSRI) that blocks the reuptake of serotonin (5-HT) by the nerves of the central nervous system, which enhances serotonergic activity.