Novadel Pharma Inc., of Bridgewater, N.J., said it sold its Zolpimist new drug application (NDA) to specialty pharma company Amherst Pharmaceuticals LLC, of Basking Ridge, N.J. The transaction also includes patents and trademarks covered by a license agreement with ECR Pharmaceuticals Co. Inc., of Richmond, Va., for U.S. rights to Zolpimist as well as the license agreement itself.