Petrodex Breath Spray for Dogs & Cats. A Daily Use Breath Spray for Between Brushings. Benefit: Fights bacteria that cause plaque and bad breath. Cleans teeth and gums control bad breath and soothe irritated gums. Leaves dogs and cats with wintergreen fresh breath. Use: Apply daily or as needed for fresh breath or to soothe gum irritation. Active Ingredients: 0.95% Zinc Gluconate, 0.04% Methyl Salicylate. Other Ingredients: Purified Water, Glycerin, Xylitol, Citric Acid, Flavor, Glucose Oxidase (Aspergillus niger), Glycine, Potassium Sorbate, Sodium Benzoate, Dye, Lysozyme.