DURALACTIN Feline contains MicroLactin, a patented, milk protein concentrate derived from hyperimmunized cows that contains factors that appear to inhibit neutrophil participation in the inflammatory response1. DURALACTIN Feline does not share the mechanism of action of any known drug and is not a cycloxygenase (COX-1 or COX-2) inhibitor. Some cats may be sensitive to milk proteins and/or carbohydrates. Should vomiting or diarrhea occur, please discontinue and consult your veterinarian. Indications: DURALACTIN Feline is intended to be used as a nutritional aid for the management of chronic inflammatory conditions including musculoskeletal disorders (i.e. arthritis).