Keep your kitty strong, happy and healthy with Duralactin Feline L-lysine Cat Supplement, 32.5-mL Syringe! It helps manage chronic inflammatory conditions in 4 to 7 days with peak effects seen in 10 to 14 days and helps maintain respiratory and ocular health especially in your cat who is physically stressed. This purr-fect supplement can be used alone or with other therapies, does not inhibit COX-1 or COX-2 and can be used short or long term. It contains MicroLactin, a protein derived from milk, plus L-lysine, for use in your cat or kitten with conditions responsive to MicroLactin and L-lysine. Feed this delicious poultry paste directly to your feline friend or with food.