Recommended to help support respiratory and ocular health while managing inflammation. Duralactin® Feline L-Lysine Paste contains MicroLactin®, an exclusive dried milk protein concentrate derived from hyperimmunized cows which contains factors that appear to block cytokines and inhibit neutrophil participation in the inflammatory response.* Duralactin® products also support normal activity and wellness. Directions for Use Give 2.5 ml (one notch or line on syringe) directly or with food twice a day. Kittens may be given 1.25 ml (1/2 notch) twice a day.