Cough Free works fast to stop stable cough and attack allergies and bacteria that cause coughs and congestion. Powder supplement contains all-natural herbs and minerals, no fillers. Will test free. Dosage: 2 scoops (1-1/2 oz) per day for the first 5 days, then 1 scoop per day until coughing ceases. May also be mixed with warm water and dose-syringed into horse's throat.