CAMBRIDGE, Mass.--(BUSINESS WIRE)--Genzyme Corp. (NASDAQ: GENZ) today reported that second-quarter revenue was $1.08 billion, compared with $1.23 billion in the same period last year, reflecting limited shipments of Cerezyme® (imiglucerase for injection) and Fabrazyme® (agalsidase beta) due to product supply constraints in 2010. The company expects to be able to increase shipments of Cerezyme and Fabrazyme during the second half of the year.