Stops equine coughs fast and gives relief from allergies, heaves, roaring and strangles. Will not interfere with any treatment programs from your veterinarian. Will not test positive. Can be used as often as needed. All natural. Dosage: Use an oral syringe, administer oz. (15 cc) in the morning before morning exercise. Repeat the oz. (15 cc) dosage in the late afternoon or evening if desired. Shake before using. Comes in 1/2oz, 16oz, 34 oz, and 1 Gallon.