Dup 753 Drug

Merck & Co., the world's largest pharmaceutical company, said Thursday that it would team up with the nation's largest chemical company, Du Pont Co., to develop the next generation of major blood pressure drugs and to share marketing rights to certain drugs. The agreement marks the second time in four months that Merck has signed cooperative pacts with other major companies.

Merck & Co., the world's largest pharmaceutical company, said Thursday that it would team up with the nation's largest chemical company, Du Pont Co., to develop the next generation of major blood pressure drugs and to share marketing rights to certain drugs. The agreement marks the second time in four months that Merck has signed cooperative pacts with other major companies.