I honestly have never discussed joint supplements with my vet but from what everyone is stating it sounds like oral supplements really don't work. If that's true (and I'm not saying it's not, just a legit question) how come my mares are obviously better on their meds? Also, how come people take oral Glucosamine, Chondroitin etc and they do well? How come my dog's vet told me to put her on people Glucosamine, Chondroitin for her arthritis? Do horses have different type of metabolisms that do not process the oral meds well? I'm very curious since both my mares have improved on oral meds.