Researchers from Vanderbilt University say the rate of sudden cardiac death is twice as high (29 versus 14 per 10,000) for people taking anti-psychotic medication than for those who aren't. Based on analysis of 15 years of Medicaid data from Tennessee, authors of a study published in the New England Journal of Medicine(NEJM) conclude that despite expectations that they differed, first and second generation anti-psychotic drugs have similar, dose-related risks.