Transaction in Own Shares

GlaxoSmithKline PLC
17 December 2003

                              GlaxoSmithKline PLC

GlaxoSmithKline PLC announces that in accordance with the authority granted by
shareholders at the Annual General meeting on 19th May 2003 it purchased for
cancellation 1,150,000 of its Ordinary 25 pence shares on Wednesday 17th
December 2003 at a price of 1269.43 pence per share.



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