I hope I'm using this correctly - I'm fairly new to internet conversations. My (soon to be) 16 year old dog stopped eating following medication for his cough caused by his heart murmur. We took him off the medicine when it elevated his BUN kidney results, but he has failed to return to a normal eating schedule. I've tried special diets, special food, canned food (he always at only dry food), all to no avail. He has gone from 18 pounds to 14 in the past 3-4 months. Suggestions will be lovingly appreciated. Thanks all.