Dogs have a very keen sense of smell, their olfactory faculties are well developed and the moist snout aperture is responsible for processing this. When it comes to chemical substances like pills, dogs may regard them as poisons. Some dogs are very good at this and they retain the memory of substances that elicited negative side effects on their physiology. Unlike human pills which are sugar coated to cheat the palate, dog pills are in their raw form and it goes without saying that they are bitter. Sugar coating them will not improve matters since canines don't have a sweet tooth. The best strategy in my opinion is to mix the dog food with the pill crushed into a powder to obfuscate the sense of smell. This should be done when serving the dog's favourite dish, for example raw steak. The other feasible alternative would be to use a bolus gun but again, this would require one to institute a method to restrain the animal which is likely to stress it. This might result in future resistance as dogs are sensitive to fear. A good turn deserves another.
