Quoted from http://www.nytimes.com/2011/07/22/business/fda-issues-alerts-on-the-heart-drug-multaq.html
F.D.A. Issues Alerts on the Heart Drug Multaq
By DUFF WILSON
Published: July 21, 2011
American and European regulators issued safety alerts on Thursday about Multaq, a drug approved two years ago to treat abnormal heart rhythms.
The Food and Drug Administration said a study of the drug in patients with a long-term form of the disease, known as atrial fibrillation, showed twice as many deaths as those who did not take the drug.
The alerts provided the first details of a 3,000-patient trial halted by Sanofi-Aventis two weeks ago. The company had cited “a significant increase in cardiovascular events.”
Multaq was approved for short-term arrhythmia lasting less than six months. Since then, the F.D.A. said, 241,000 Americans have received prescriptions.