Breathe EZ helps promote clear, open airways and a healthy respiratory system. Can be used in pets with allergies, environmental sensitivities and respiratory conditions like asthma. Active ingredients: A proprietary blend of extracts including Licorice root, Elecompane root, Oregano leaf, Gingko leaf, and Mullein leaf...250 mg. Inactive ingredients: Vegetable glycerin, distilled water. Alcohol free! Dosage for cats: up to .5 ml 1-2x daily