About Rx Vitamins Liquid Immuno Support for Dogs and Cats When your pet needs an immunity booster, reach for Rx Vitamins Liquid Immuno Support for Dogs and Cats! This mushroom immune support liquid is an easy-to-administer supplement containing four high-potency ingredients to help maintain a healthy immune system. Immune support for cats and dogs is crucial at all stages of life, and a nourishing immune supplement may be necessary when your furry friend is managing a chronic condition or recovering from an illness. Our formula contains amino acid L-Lysine, Reishi Mushroom, Larch extract, and Lutein in a powerful blend for immune system support. The combination of these herbal ingredients and L-Lysine for cats and dogs has been shown to be more effective that each ingredient on their own for helping protect against immune system challenges. Immune system support for dogs and cats is finally easy with this high-potency supplement in an easy-to-administer liquid. Simply follow the dosing instructions on the label and drop dose over your pet's favorite meal. Forget about messy powders and struggling with capsules; this simple liquid makes each dose easy for you and your furry friend. Ideal for adult and senior pets, this cat and dog immune boost supplement is great for pets who travel, have a new sibling, or are newly adopted to help sustain a strong immune system. Reach for Rx Vitamins Liquid Immuno Support for Dogs and Cats!