Citalopram comes in tablet form, in 10, 20, and 40 milligrams (mg), or as a liquid solution taken orally. Your doctor will likely prescribe a 20 mg dose of citalopram, taken once a day, to start. Citalopram hydrobromide, known under brand name Celexa, should not be administered at doses over 40 mg per day, because it can trigger abnormal electrical activity in the heart, leading to. Adverse Events Occurring at an Incidence of 2% or More Among Celexa-Treated Patients Table 3 enumerates the incidence, rounded to the nearest percent, of treatment-emergent adverse events that occurred among 1063 depressed patients who received Celexa at doses ranging from 10 to 80 mg/day in placebo-controlled trials of up to 6 weeks in duration. Citalopram, sold under the brand name Celexa among others, is an antidepressant of the selective serotonin reuptake inhibitor (SSRI) class. It is used to treat major depressive disorder, obsessive compulsive disorder, panic disorder, and social phobia. Benefits may take one to four weeks to occur. It is taken by mouth. Facts about Celexa (citalopram hydrobromide) In a class of antidepressants called selective serotonin reuptake inhibitors (SSRIs). Thought to work by increasing the amount of serotonin in the brain. Pictures of Celexa (Citalopram Hydrobromide), drug imprint information, side effects for the patient. How to use Celexa. Read the Medication Guide and, if available, the Patient Information Leaflet provided by your pharmacist before you start taking citalopram and each time you get a refill. Does the drug Celexa stop working after a period of time, I have been taking for approximately eight years ,and I am - Answered by a verified Doctor Celexa (citalopram) is an antidepressant in a group of drugs called selective serotonin reuptake inhibitors (SSRIs). Includes Celexa side effects, interactions and indications. Drug Information on CeleXA (citalopram) includes drug pictures, side effects, drug interactions, directions for use, symptoms of overdose, and what to avoid.