US dollars <a href=" http://bwanalysis.org/street-prices-of-drugs-in-canada.pdf#marine ">return unused prescription drugs</a> Page, who has worked for Cargill for 39 years and is stepping down from chief executive before Cargill's mandatoryretirement age of 65, will become the company's executivechairman. In that role, Page will lead the board and be aresource to the company.