Rite Aid Cuts View as Pharmacy Sales Slow  CHICAGO (Reuters) - Drugstore chain Rite Aid Corp. &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=RAD.N target=/stocks/quickinfo/fullquote"&gt;RAD.N&lt;/A&gt;  on Tuesday warned that full-year profit and revenue would fall  short of Wall Street expectations because of slowing pharmacy  sales as companies try to curb health-care costs.