May 1 (Reuters) - GSK raised its full-year profit forecast on Wednesday, betting on strong demand for its common respiratory virus and shingles vaccines.

The London-listed drugmaker said it now expects a rise of 8% to 10% in annual adjusted earnings per share, up from the 6%-9% growth previously forecast.

It expects its sales to rise in the upper end of its 5% to 7% forecast range.

(Reporting by Eva Mathews in Bengaluru; Editing by Subhranshu Sahu)