The NFL decided not to renew its sponsorship agreement with Levitra, which is co-marketed in the U.S. by Schering-Plough and GlaxoSmithKline.The league says it will not seek a replacement in the category, according to published reports.The NFL based its decision on the tone of ads for erectile dysfunction drugs. Over the past three years advertising has ranged in focus from men’s health to men’s performance and lifestyle. Ads by Levitra and others have recently been more restrained, however, not mentioning a product name but describing conditions the drug could help treat.