Serono SA is teaming up with Pfizer Inc. to co-promote the multiple sclerosis drug Rebif in the United States, which will position Rebif directly against Biogen Inc.'s powerhouse drug Avonex. (BioWorld Today)

Serono SA is teaming up with Pfizer Inc. to co-promote the multiple sclerosis drug Rebif in the United States, which will position Rebif directly against Biogen Inc.'s powerhouse drug Avonex. (BioWorld Today)