http://medicalxpress.com/ en-us Medical Xpress internet news portal provides the latest news on Health and Medicine. The U.S. Food and Drug Administration's warning that high doses of the antidepressant citalopram can cause potentially serious abnormal heart rhythms might be doing more harm than good. http://medicalxpress.com/news/2013-05-fda-high-dose-antidepressant-prescription.html Psychology & Psychiatry Fri, 03 May 2013 13:11:49 EST news286805500 A 2011 warning from the U.S. Food and Drug Administration about the popular antidepressant citalopram (Celexa) left many patients and physicians with more questions than answers. Now an analysis of the medical records of more than 38,000 patients by Massachusetts General Hospital (MGH) investigators clarifies the contribution of citalopram and other antidepressants to lengthening of the QT interval, an aspect of the heart's electrical activity that – when prolonged – may increase the risk of dangerous arrhythmias. The study supported the FDA's warning that higher doses of citalopram were associated with a prolonged QT interval but also found that the effects of some other antidepressants were quite different. http://medicalxpress.com/news/2013-01-antidepressant-contribution-arrhythmia.html Medications Tue, 29 Jan 2013 18:30:02 EST news278676697 People in the United States took more prescription drugs than ever last year, with the number of prescriptions increasing from 3.99 billion (with a cost of $308.6 billion) in 2010 to 4.02 billion (with a cost of $319.9 billion) in 2011. Those numbers and others appear in an annual profile of top prescription medicines published in the journal ACS Chemical Neuroscience. http://medicalxpress.com/news/2012-09-billion-prescriptions-states.html Medications Wed, 12 Sep 2012 11:08:53 EST news266666917 (HealthDay) -- In a follow-up to a warning that high doses of the popular antidepressant Celexa can cause potentially fatal abnormal heart rhythms, the U.S. Food and Drug Administration has issued new dosing and use recommendations. http://medicalxpress.com/news/2012-03-fda-antidepressant.html Medications Wed, 28 Mar 2012 13:20:02 EST news252158907 Federal health regulators are warning doctors not to prescribe high doses of the antidepressant Celexa, because of the risk of fatal heart complications. http://medicalxpress.com/news/2011-08-fda-heart-high-doses-celexa.html Medications Wed, 24 Aug 2011 13:43:48 EST news233412211