Drug marketer Sanofi-Synthelabo, maker of sleeping-pill brand Ambien, is reviewing its $200 million-plus global ad account, sources said last week. Agency teams from Havas, WPP and Publicis, all of which own Sanofi roster shops, are competing. Paris-based Sanofi spent about $120 million on U.S. advertising in 2002, according to Nielsen Monitor-Plus.
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