
I used green-lipped mussel with apparent good effect for my terrier's early arthritic relief. It seems to help for several years but towards the end she was given Cartrophen injection as the green-lipped was proving insufficient. Can't remember the dosage as such but I bought a 5 capsule a day for humans jar from Holland and Barrett and gave her one a day. Not sure of glucosamine, it may me very queazy, no reason to assume it would have been the same for the dog but she had a delicate digestion so I never risked it.