EnduraPet Immune Support Chewable Tablets, 60 Count Designed to adjust your pet's immune system to perform at 100 percent to help fight disease Provides important cardio protective support for pets undergoing treatment; Can improve heart function and strengthen the heart muscle Nine meticulously chosen, carefully sourced, natural immune-boosting ingredients including CO-Q10, L-Lysine, Maitake mushroom and more Veterinarian recommended Manufactured in an FDA approved facility which complies with Good Manufacturing Practices (GMPs)