By Shristi Achar A April 18 (Reuters) - Canadian stocks rose on Tuesday after consumer price data showed signs of slowing inflation, while shares of Bellus Health nearly doubled on GSK's buyout deal. Bellus Health IncBLU.TO soared 99.7% after GSK's GSK.L plan to buy the Canada-based drug developer in an all-cash deal for $2 billion, lifting the healthcare sector .GSPTTHC up 11.9%. It bolsters the likelihood of a soft landing for the Canadian economy and less pressure on the Bank of Canada to go further with interest rates," said Brandon Michael, senior analyst at ABC Funds.