Nutramax Dasquin joint health is about the size of your thumb nail. I brake it in half for my dog. At first he would not take it but after holding it to his mouth for a few minutes he finally gave in and tried it. I have not had a problem with him taking it since. I received the small/medium dog vitamins. I got the one hundred count bottle. This vitamin is good for older dogs as well as younger ones. My dog is ten years old and is doing great on these vitamins. Have not had any stomach aches or other side affects. I highly recommend these vitamins.