I've been on Celexa-(Citalopram) for the past 2 months. I never experienced any side effects w/this drug. The only side effect that I have encountered would be failrly recent when my Dr. upped my dose from 20mg to 40mg approx. 3 1/2 weeks ago. Citalopram / Celexa is still one of the most widely prescribed antidepressants for anxiety and panic disorder, despite its makers, Lundbeck, producing an updated version called Escitalopram. What should I discuss with my healthcare provider before taking citalopram (CeleXA)? You should not use this medicine if you are allergic to citalopram or escitalopram , or if you also take pimozide. Definition Citalopram is a selective serotonin reuptake inhibitor (SSRI) antidepressant drug that is sold in the United States under brand name Celexa. Selective serotonin reuptake inhibitors (SSRIs) SSRIs, a commonly prescribed type of antidepressant, can help you overcome depression. Discover how SSRIs improve mood and what side effects they may cause. Celexa® (citalopram ) 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 available antidepressant agents. Description Trazodone acts to change the balance of naturally occurring chemicals in the brain that regulate the transmission of nerve impulses between cells. Personalized insights from top U.S. Doctors: The full adult dose of loratadine in other parts of the world is 20 mg. 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. 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.