Purchase of Own Securities

GlaxoSmithKline PLC
15 September 2004

GlaxoSmithKline plc (the "Company") announces that in accordance with the
authority granted by shareholders at the Company's Annual General Meeting on 17
May 2004 it purchased 880,000 of its Ordinary shares of 25 pence each ("shares")
on 15 September 2004 at a price of 1185.3365 pence per share.

The Company intends to hold these shares in Treasury.

Following the purchase of these shares, the Company holds 44,173,000 of its
shares in Treasury and has 5,890,455,606 shares in issue (excluding Treasury
shares).

This announcement does not constitute, or form part of, an offer or any
solicitation of an offer to purchase or subscribe for securities in any
jurisdiction.


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