Prescription items are NON-RETURNABLE and NON REFUNDABLE Isoflurnane Injection For Dogs, Horses Phoenix Pharmaceuticals Isoflurane inhalation anesthetic is for use in dogs and horses. Phoenix Pharmaceuticals Isoflurane is a nonflammable, nonexplosive general inhalation anesthetic agent that helps maintain levels of anesthesia by inhalation. This item must be shipped by regular ground shipping. 250ml 012ABB-250CC P03468