Accredo Cuts Forecast, Stock Plummets  NEW YORK (Reuters) - Accredo Health Inc. &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=ACDO.O target=/stocks/quickinfo/fullquote"&gt;ACDO.O&lt;/A&gt;, which  provides pharmacy and treatment services for patients with  chronic illnesses, on Monday slashed its profit forecast due to  lower reimbursements from government insurers, sending its  shares down 23 percent in pre-market trade.