you get blood work to monitor the liver enzymes once a month while on the Rimadryl. Metacam is another NSAID that may be tried.

Good approach on the fish oil - forget Purina. The only known side effect for too much fish oil is possible loose stools. If so cut back. I gave it to my prior Lab like dog after she was diagnosed with Lymphoma. She received 3000-4000 mg 2X daily without any problems.

Another try that has been floating in the breeze for almost two years is to contact the company BSP Pharma and ask them if they are ever going to market BSP-201 a sheanut oil extract which they claim can provide as good pain relief as the NSAIDs. I tried Emailing them twice. Once over a year ago and it was claimed they would soon be marketing in N. America. I sent a follow up a few months ago, and got no reply. The only thing I know about sheanut oil per se is that there is some evidence it raises cholesterol in humans. Probably raw sheanut oil will have minimal or no effect on pain. So it all rests with BSP marketing their product, or at least answering their Emails!