You may use ARTHRO-IONX along with other medications or supplements so it is OK to use with those meds. It is homeopathic in nature and so it will not negatively interact with other physical substances. What anti-inflammatory is your dog on?
To dose ARTHRO-IONX I would split the dose and give a half dose with breakfast and a half dose with supper. In addition to your other supplements I would give PROBIOTICS and MSM. What kind of water do you give your dog?
I would recommend having a veterinary chiropractor check your dog. It often improves movement.
Please let us know how you do.,