The immune system is a complex array of cells that are found throughout the body. Immune cells are designed to work in conjunction with other immune cells to provide a defense against unwanted invaders. The complexity of the immune system requires a multidimensional approach of nutritional factors. Nutritional support of the immune system is directed at facilitating normal function and is not intended to be suppressive or stimulating. Feline Immune System Support: Provides nutritional and biochemical support for healthy immune cells and tissues Supports optimal immune system function* Indications for Use: General immune system support Colder climates or during the fall/winter months When kenneled or in a shelter The feline patient should receive one tablet two times per day, or as directed. Feline formulas can be administered in a variety of ways, including: Whole tablet or crushed Dosed directly or mixed with food Cautiously, as a powder suspended in water given by oral syringe To familiarize the cat with the supplement, it may be helpful to place one tablet beside the food bowl for two or three days prior to mixing the tablet with the food. Each Serving Size (1 tablet) contains: Eleutherococcus senticosus, bovine liver, L-glutamine, porcine jejunum, bovine orchic Cytosol™ extract, Emblica officinalis, ribonucleic acid, bovine and ovine spleen, bovine spleen PMG™ extract, bovine thymus Cytosol™ extract, bovine pituitary PMG™ extract, bovine adrenal Cytosol™ extract, buckwheat leaf juice and seed, pea vine juice, bovine hypothalamus Cytosol™ extract, oat flour, bovine kidney, bovine thyroid PMG™ extract, alfalfa juice, copper rice chelate, iron rice chelate, zinc rice chelate, kelp, and bovine pancreas PMG™ extract. Other Ingredients: Honey and calcium stearate Guaranteed Analysis Potassium 3.5 mg / tablet Iron 140 mcg / tablet Copper 20 mcg / tablet Zinc 70 mcg / tablet Caution: This product is processed in a facility that manufactures other products containing soy, milk, egg, wheat, peanuts, tree nuts, fish, and shellfish.