Flunazine is an injectable solution for horses that is recommended for the alleviation of inflammation and pain associated with musculoskeletal disorder. It is a non-steroidal anti-inflammatory drug (NSAID) that is also recommended for the alleviation of visceral pain associated with colic in horses. Flunazine is a potent medication that provides relief from pain in as little as 15 minutes after administration. It is safe to use as it is non-narcotic, non-steroidal. Flunazine can also be used in cattle for reasons not listed here. Flunazine requires a prescription from your veterinarian.