It’s a non steroidal anti inflammatory drug that helps relieve pain also. How often did the vet rec? Just like the OTC things we take like Ibuprofen etc it’s not something we want to stay on there are side effects. It’s so awesome he is doing so much better. When my dachshund was on it It was for 14 days, But the best would be to contact the vet and tell him how well he’s doing and how often he’d rec you give it.