The pain meds do say as needed. I did give him half of one. He also got his last shots today and he is really sore. He won't let us pick him up. I was going to pick him up and put him on the couch but he barked out like it hurt. He is just walking around but he can't seem to get comfortable. He was playing this morning so i think he is more sore from the shots. I am a little worried about him because he don't act right. I am not use to him not feeling good.