How long has Pfizer Inc. been in operation?

Pfizer Inc. has been in operation since it was founded in 1849. The company was established by Charles Pfizer and his cousin, Charles F. Erhart, in Brooklyn, New York. Initially, Pfizer focused on producing fine chemicals, particularly a pharmaceutical called santonin, which was used to treat intestinal worms. Over the decades, the company expanded its operations significantly and evolved into a major global player in the pharmaceutical industry. Pfizer has developed numerous widely used medications and vaccines, contributing to various areas of healthcare, including infectious diseases and chronic conditions. With over 170 years of history, Pfizer has been at the forefront of pharmaceutical innovation, continually adapting to meet the changing needs of patients and healthcare providers. For more detailed information about Pfizer's history and initiatives, it may be helpful to visit their official website.