Just one Tomlyn L-Lysine Immune Support Chew contains 500 mg of lysine, which can help cats manage conditions responsive to lysine.*May Help With:*• Squinting, watery, red and/or itchy eyes• Sneezing• Runny nose• CongestionLysine supports normal eye function, respiratory health, and a strong immune system. Plus, administration is easy — simply give one chew per day for as long as your cat needs immune system support. Whether your cat is fussy or will happily eat anything, our daily L-Lysine Immune Support Chews for cats are bite-sized and perfect to use as positive reinforcement.