Fitch downgrades credit rating on Pfizer
NEW YORK Credit rating agency Fitch says it is downgrading several credit ratings for pharmaceutical giant Pfizer Inc. ahead of the loss of patent protection for its best-selling drug, Lipitor.
In its report on the US financial polices at home and abroad issued on the 22nd, the agency Fitch Ratings again threatened to lower the US credit rating in a year or two.