Polydex Pharmaceuticals Limited is engaged in the research, development, manufacture and marketing of biotechnology-based products for the human pharmaceutical market, and also manufactures bulk pharmaceutical intermediates for the worldwide veterinary pharmaceutical industry. The Company focuses on the manufacture and sale of Dextran and derivative products, including Iron Dextran and Dextran Sulphate, and other specialty chemicals. The Company conducts its business operations through its two subsidiaries. The manufacture and sale of Dextran and derivative products is conducted through Dextran Products Limited, incorporated in Canada in 1966, and Chemdex Inc which is incorporated in the state of Kansas, United States.