Equioxx is a non-steroidal, anti-inflammatory drug (NSAID) for the control of pain and inflammation associated with osteoarthritis in horses. Just one convenient, daily dose lasts up to 24 hours and can help improve your horse's mobility. It is the only NSAID allowed for use up to 14 days. It's available in a chewable tablet and a paste for easy administration. Equioxx requires a prescription from your veterinarian.