Pfizers

Pfizers, commonly referred to as Pfizer Inc., is an American multinational pharmaceutical corporation headquartered in New York City. It is one of the largest pharmaceutical companies in the world by revenue and market presence, with a portfolio that includes medicines, vaccines, and other health care products for human use. The company conducts research, development, manufacturing, and global marketing across multiple therapeutic areas.

Founded in 1849 by Charles Pfizer and Charles Erhart in Brooklyn, Pfizer began as a fine chemicals business and gradually expanded into pharmaceuticals in the 20th century. It expanded its scale and portfolio through internal development and strategic acquisitions, notably the 2009 purchase of Wyeth, which broadened its offerings in vaccines, biologics, and consumer health products. Pfizer maintains a global footprint with research laboratories, manufacturing sites, and commercial operations in many countries.

Pfizer’s product slate covers oncology, immunology, cardiology, neurology, infectious diseases, and vaccines. A prominent recent example is the BNT162b2 mRNA vaccine developed with BioNTech for COVID-19, marketed as Comirnaty. The company also markets established vaccines such as Prevnar and a range of prescription medicines. Pfizer frequently engages in collaborations, licensing agreements, and joint ventures to extend its research and commercial reach.

As a publicly traded company, Pfizer is listed on the New York Stock Exchange under the ticker PFE. It reports to regulators such as the U.S. Food and Drug Administration and the European Medicines Agency and participates in ongoing health care policy discussions. Like many large pharmaceutical firms, Pfizer faces legal, regulatory, and pricing scrutiny in various jurisdictions.