AIR POWER's all natural wind and cough formula is FDA-approved. Usually one dose of AIR POWER will stop a horse from coughing all day. Safe for pre-event / race / performance; will not test. Cost effective; you only use ¼th as much AIR POWER as you do most other products. The world's most effective wind and cough formula and it is all natural. Abailable in a 5 oz oral dose syringe, 16 oz and 32 oz.