Pfizer and Wyeth companies become one - Pfizer scientists at Grange Castle, Clondalkin, Ireland, one of the world's leading biopharmaceutical campuses. The combined operation is a more diversified health care company with expanded leadership in human, animal and consumer health. AP Photo logo AP Photo 1 month ago

Pfizer and Wyeth companies become one - Pfizer scientists at Grange Castle, Clondalkin, Ireland, one of the world's leading biopharmaceutical campuses. The combined operation is a more diversified health care company with expanded leadership in human, animal and consumer health.