Used in research and diagnostic laboratories to detect and quantify porcine pepsin in biological samples. Commonly applied in studies related to gastric function, reflux disease, and aspiration in medical and veterinary fields. Helps in identifying pepsin as a biomarker for laryngopharyngeal reflux (LPR), especially in human saliva or lung fluid, indicating potential acid reflux events even without heartburn. Widely used in experimental models involving pigs to study digestive physiology or evaluate anti-reflux therapies. The kit enables high-throughput analysis with reliable sensitivity and specificity, supporting both clinical research and pharmaceutical development.