My 10 year old sheltie has a limp about twice a year. I give him Metacam for a day or so and the problem goes away for 6 months. I am out of Metacam and the vet won't sell me more till she sees him. So I pay $50 for her to tell me what I already know, then another $50 for the drug! - they are working me. I just searched E-bay for a source but I see none. I remember comparing prices somewhere on line for Metacam in the past. Where can I order it?