Do you fast him at all? Eating twice daily or even daily isn’t natural for dogs. Some dogs will periodically fast themselves for a day or two when they feel they need it. I fast my dogs once a week. As long as he’s acting normal, his stools are normal and he’s not vomiting, I’m sure he’s fine. If it were me, I’d withold all food for 24 hours and then see if he eats – if not then you should probably call your vet. You also should probably do a little research on the medication and/or contact your vet regarding any effect it may have on appetite.
