The vet started my old dog on a new Rx for his hips. After about 4 days the Rx was working & I called to price a larger quanity- got 10 to see if they worked. 30 tabs was going to be $130 at the vets. On line I bought 60 for $95 including shipping. I would not mind paying the vet a little more but this seemed totaly out of line.