Cerenia is primarily used as an antiemetic, specifically to prevent and treat vomiting and motion sickness in dogs. While it may help alleviate nausea associated with various conditions, including pancreatitis, it is not a specific treatment for pancreatitis itself. If your dog has pancreatitis, it is essential to follow your veterinarian's recommendations regarding the comprehensive management and treatment plan, which may include dietary changes, medication, and other interventions specific to pancreatitis.