1995 - merged with Glaxo plc to form Glaxo Wellcome plc; 2000: merged again with SmithKline Beecham plc in 2000 to form GlaxoSmithKline
1995 - merged with Glaxo plc to form Glaxo Wellcome plc; 2000: merged again with SmithKline Beecham plc in 2000 to form GlaxoSmithKline