Medizone International, Inc. announced the appointment of Jude P. Dinges, as its executive vice president - commercial operations. Before joining Medizone, Mr. Dinges, served as senior vice president, chief commercial officer of Aeterna Zentaris Inc. Mr. Dinges began his career nearly 35 years ago as a professional sales representative at Bristol Laboratories and later at Merck & Co., where he was promoted to positions with increased responsibilities in training, hospital & specialty sales, management, marketing and market development.