Felisyl Immune System Support for Cats (60 Soft Chews) by Pet Health Solutions is a nutritional supplement that is safe and effective for conditions responsive to Lysine. Llysine reduces the severity and frequency of herpes simplex viral infections which are also known as cold sores or fever blisters. In cats, herpes virus is not sexually transmitted. It is a highly contagious and extremely common cause of upper respiratory infections, or URIs. URIs are marked by eye discharge, squinting, sneezing, and sinus congestion. Lysine has been proven to reduce the severity and duration of feline herpes virus infections in your cats. Felisyl is a palatable nutritional supplement for cats and kittens and should be mix with your pets food at feeding time. LLysine HCL Easy to administer tasty soft chews Administration: Approximately 1 to 2 Soft Chew LLysine daily. Ingredients: chicken liver flavor, starch, Llysine, water, soy lecithin, canola oil, brewer's yeast, glycerin, oat flour, barley flour, rye flour, oat meal, calcium sulfate, maltodextrin, sodium alginate, sobric acid, propionic acid (a preservative), mixed tocopherol blend (a preservative). Guaranteed Analysis per ChewMoisture ......... 18.6 LLysine ......... 250 mg Administration:Give 1 2 chews daily. Warnings: For animal use only. Store in a cool dry place. Keep out of the reach of children and animals. In case of accidental overdose, contact a health professional immediately. Felisyl is a manufactured in the USA in FDA and USDA approved facilities following current Good Manufacturing Practice (GMP) GUidelines.