Pfizer was founded by cousins Charles Pfizer and Charles Erhart in 1849
Their first product is a palatable form of santonin — an antiparasitic used to treat intestinal worms, a common affliction in mid-19th century America.
CHANTIX™, a prescription medicine to help people quit smoking
2000: Pfizer and Warner-Lambert merge to form the new Pfizer.
2003. Pfizer Inc and Pharmacia Corporation began operating as a unified company