Pfizer criticised over delay in admitting drug's problems

Pfizer delayed announcing negative data about its painkiller valdecoxib (Bextra), Curt Furberg, a member of the US Food and Drug Administration's Data Safety and Risk Management Advisory Committee, told the BMJ this week. When the company eventually presented its data to the FDA, it also left out important details, Dr Furberg alleges.

Pfizer stood to gain by …