answer:So sad. All I can say is put your dog’s best interest first. My cay takes 3 pills and a liquid twice a day to keep her alive (she has Restrictive Cardiomyopathy sp?). She hates it, but she’s 7 years old and still a frisky kitty. If medication helps, and you can afford it, I don’t see a problem. The only way I’d consider putting a pet to sleep is if there was nothing to be done, and my pet was in pain and living a hard life. See what the vet says. You are not a horrible person; you obviously love your dog. It’s good that you’re so conflicted, it shows how much you want to do what’s best for him. Let us know.