Pfizer has launched a two-pronged litigation effort to stop Novo Nordisk from acquiring a weight loss drug company, filing a breach of contract suit in the Court of Chancery on Friday and an antitrust ...

Pfizer is facing a landmark lawsuit in the US brought on behalf of more than 1,000 women who say they developed brain tumors after taking the popular contraceptive injection Depo-Provera. On Monday, ...

The big drugmaker should be even bigger over the next five years despite facing a patent cliff. It's a different story today. Sales for Pfizer's COVID-19 vaccine have declined significantly. The ...