LONDON (Reuters) - U.S. drugmaker Pfizer (N:PFE) said on Friday it had raised its offer for AstraZeneca (L:AZN) to 50 pounds ($84.47) a share, adding that the British drugmaker was reviewing the proposal.
AstraZeneca earlier rebuffed a proposal valuing it at just under $100 billion, or 46.61 pounds per share.
(Reporting by Ben Hirschler; editing by Kate Holton)