Prescription items are NON-RETURNABLE and NON REFUNDABLE Equioxx Oral Paste Finally, you have a new choice for equine pain relief! New Equioxx offers care without compromise. Equioxx is proven in field trials to relieve the pain and inflammation of equine osteoarthritis, while offering an excellent safety profile. This prescription pain relief acts fast and lasts for 24 hours, all in an easy to give paste formulation. Each syringe contains 6.93 grams of Equioxx paste (0.82% firocoxib) sufficient to treat a 1250 lb horse. 012-EQ-1 350604659761