If there is significant pain I usually give Promaxol first. It contains the stronger LM potencies. After improvement is seen then you can switch over to Arthro-IonX. In addition it is helpful to give Canine Probiotics with each meal, MSM, vitamin C, and Omega 3,6,9 daily. We carry Canine Probiotics and Omega 3,6,9. The other two you can get at a health food store. The oligotherapeutic mineral base found in the IONX products helps the body to better utilize the other nutritional substances given for a synergistic response and faster healing. With further improvement I hope that you will be able to wean off the Rimadyl. It is a gradual process because we are trying to heal, not just block pain signals.
Also be sure to give sufficient fresh water that is free of chlorine and fluoride. If you can gradually phase into a grain free diet that can be helpful too. The other thing that is sometimes beneficial is to have a certified veterinary chiropractor check for spinal alignment and make any corrections as necessary. I have usually found it to really help.
Please let us know how you progress or if you have any other questions.