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Aventis Pharma assigned McCann-Erickson, New York, part of the Interpublic Group of Cos., ad duties for its antihistamine Allegra. The marketer and its previous agency Leo Burnett USA, Chicago, a division of Bcom3 Group, agreed to part ways. Bcom3's Starcom MediaVest Group handles media for the brand. According to Taylor Nelson Sofres' CMR, Aventis Pharma spent nearly $67 million on measured media supporting the Allegra brand in 2000. -- Laura Q. Hughes

Copyright March 2001, Crain Communications Inc.

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