Feb 28 (Reuters) - Canada's main stock index opened little changed on Wednesday as gains in shares of natural resource companies and banks were offset by a drop in Valeant Pharmaceuticals (NYSE:VRX) VRX.TO after it gave a weaker-than-expected revenue forecast.
* At 9:37 a.m. ET (14:37 GMT), the Toronto Stock Exchange's S&P/TSX composite index .GSPTSE was up 17.08 points, or 0.11 percent, at 15,688.23.