FDA warns P&G over Vicks products with vitamin C (San Francisco Chronicle) (10-30) 14:44 PDT Silver Spring, Md. (AP) -- The U.S. Food and Drug Administration sent a warning letter Friday to Procter & Gamble Co. saying the company was illegally marketing two Vicks cold and flu medicines containing vitamin C. The FDA... Sponsored Topics: Food and Drug Administration - Health - Procter & Gamble - Vitamin C - Associated Press [News Source]