Five top-selling drugs, in some cases, are costing Americans thousands in out of pocket expenses weekly and monthly. Here's the list.

The Food and Drug Administration could pull Pfizer's coronavirus vaccine emergency authorization for children under age 5.

The House Judiciary Committee subpoenaed a former Pfizer executive who allegedly claimed senior members of the company delayed the results of COVID-19 vaccine trials to influence the 2020 election.

Pfizer is facing another setback with its weight-loss pill, danuglipron. The pharmaceutical giant stopped development of the drug after liver issues affected one patient.

The State of Kansas has filed a lawsuit against Pfizer, Inc. for alleged consumer protection violations related to the company's manufacturing of the COVID-19 vaccine.

A Securities and Exchange Commission process for approving shareholder proposals favors a left-wing bent in corporate policies, claims a watchdog, citing audits from 2018-2022.

Pfizer expects its cancer drug Lorbrena to top $1 billion in annual sales by 2030 after most patients treated for a form of lung cancer had no disease progression after five years.

Pfizer, Inc. on Wednesday forecast 2024 sales that could be as much as $5 billion below Wall Street expectations, driving shares down 9% to a 10-year low.

Pfizer CEO Albert Bourla criticized the "despicable" testimony of three elite university presidents who were "hiding behind calls for 'context'" before deeming such rhetoric impermissible.

Pfizer is shelving development of a twice-daily version of its weight loss drug after a trial proved users reported high rates of adverse side effects.