Valdecoxib is a nonsteroidal anti-inflammatory drug (NSAID) used in the treatment of osteoarthritis, rheumatoid arthritis, and painful menstruation and menstrual symptoms.

Pharmacia & Upjohn, a Pfizer subsidiary, violated the United States Food, Drug and Cosmetic Act for misbranding Bextra "with the intent to defraud or mislead.

[9] On September 2, 2009, the United States Department of Justice fined Pfizer $2.3 billion after one of its subsidiaries, Pharmacia & Upjohn Company, pleaded guilty to marketing four drugs, including Bextra, "with the intent to defraud or mislead.

[11] A former Pfizer district sales manager was indicted and sentenced to home confinement for destroying documents regarding the illegal promotion of Bextra.

[15] Former Pfizer sales representative John Kopchinski acted as a qui tam relator and filed a complaint in 2004 outlining the illegal conduct in the marketing of Bextra.