Benefits: Contains a unique grade of cellulose powder that helps maintain normal respiratory function Comes with an easy-to-use applicator that distributes the powder evenly about the horse's nasal passageways Filters out dust, mold spores, and other airborne particles inhaled into the nasal passages Storage and shelf life: Once opened, use BreatheWise within 3 months. Do not use if tamper-evident seal on the bottle is broken or missing. Always replace the cap and store in a cool, dry place. Cautions: Keep out of reach of children. BreatheWise Powdered Nasal Spray 1 Unit. I do not receive this product or any others in exchange for this article, I do get a commission for readers clicking the buy now links which helps to differ the cost of hosting this blog and I sincerely hope this article site helps you with your search for Vet Approved Rx products.