474 In horses with nasogastric reflux attributable to POI or enteritis, a constant rate infusion of lidocaine was shown to reduce the hourly The horse was diagnosed with duodenitis-proximal jejunitis (DPJ) and developed mild respiratory stridor and gagging and retching behavior after an indwelling nasogastric tube had been in place for 48 hours to allow for intermittent drainage of gastric reflux.