Pharmaceutical and veterinary products, namely, chitosan-based implants comprising living tissue, cells, biological fluids and blood and drug delivery formulations containing chitosan in the nature of capsules, tablets, syrups, fluids, sprays, powders and drops for oral administration, fluids and solutions for parenteral and sub-cutaneous administration, fluids, sprays and drops for nasal administration, fluids, sprays and drops for ocular administration, suppositories for rectal administrati...