FTSE 100 movers: GlaxoSmithKline slumps on Avandia concernsLONDON (ShareCast) - GlaxoSmithKline slumped to the bottom of the FTSE 100 movers on concern that problems with diabetes treatment Avandia might be serious.ABN Amro chopped the drug major to 'hold' from 'buy' in reaction to reports Monday that its popular type 2 diabetes drug Avandia increases the risk of heart attack.FULL STORY HERE (Source: SEROXAT SUFFERERS - STAND UP AND BE COUNTED)

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