M.J. Rathbone and A. McDowell (eds.), Long Acting Animal Health Drug Products: Fundamentals and Applications, Advances in Delivery Science and Technology, DOI 10.1007/978-1-4614-4439-8_2, © Controlled Release Society 2013 Abstract In the future, the global market for companion animal health products is expected to further grow and become more specialized. The major drivers will be the continued...