Feb 28 (Reuters) - Canada's main stock index slumped onWednesday, pulled lower by energy shares that fell alongside theprice of oil and as Valeant Pharmaceuticals (NYSE:VRX) VRX.TO tumbledafter the company gave a weaker-than-expected revenue forecast.
* The Toronto Stock Exchange's S&P/TSX composite index .GSPTSE unofficially closed down 228.57 points, or 1.46percent, at 15,442.58.