The Sanovi-Aventis Group, with U.S. headquarters in Bridgewater, N.J., (908) 243-6000, and Bristol-Myers Squibb, Princeton, N.J., (609) 252-4000, now have FDA approval for a new indication for Plavix (clopidogrel bisulfate). The antiplatelet agent can now be used with aspirin in patients with the most severe type of heart attack-acute ST-segment elevation myocardial infarction (STEMI) who are not going to have coronary artery repair, or angioplasty. It was previously approved for helping reduce the risk of death, recurrent heart attacks, or strokes in patients with unstable angina or less severe heart attacks.