This will probably not be useful particularly, lol.
I tried it with my last dog, but... he was only on it for about 6 days before I had him PTS.
He couldn’t have NSAIDs, was by then on pardale, tramadol and gabapentin -so figured it was worth trying, at the time (not sure what the current situation is as it was about 3 years ago) it wasn’t legal to buy off prescription for animals and vets weren’t allowed to prescribe it... so basically it was illegal.
My vet did discuss it with me, very much on a - I can’t advise you on dosage or help you get it, but here’s my non professional opinion.
So I had to do loads of research on where to get actual clinical strength stuff and dosage myself then order it...
It didn’t make any difference in 6 days anyway, lol, I wasn’t expecting it to to be fair, he got worse while I was researching and waiting for it to get delivered and then he got to the point where I decided enough was enough and it wasn’t fair anymore, so I had him PTS.
So... I’d try it again if needed, but probably only when I’d run out of conventional treatments.