pfizer

Pfizer posts an 18% drop in profits for the first three months of 2008 on a loss of US exclusivity for key drugs.

The "little blue pill" -- Viagra -- turns 10 on Thursday. On March 27, 1998, the Food and Drug Administration gave pharmaceutical company Pfizer the go-ahead to sell what would become one of the world's best-known pills.

Last year, it brought the pharmaceutical giant more than $1.7 billion.

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Pfizer said Wednesday it will continue to ramp up outsourcing of manufacturing as it faces the imminent patent expiration of the world's top-selling drug, Lipitor.

A new study released at a conference on Tuesday shows that Pfizer's cancer drug Sutent may be linked to more instances of heart failure than previously thought.

Pfizer is expected to see a sharp fall in sales of one of its best-selling drugs after a warning by US regulators.