The finding is the latest in a succession of recent reports contradicting the long-held assumption that the new drugs, which include
Risperdal, Zyprexa
and Seroquel, are safer than the older
and much less expensive medications that they replaced.
The risk of death from the drugs is not high, on average about 3 percent in a person being treated at least 10 years, according to the study, published Thursday in The New England Journal of Medicine.