Carla and Magellan, It sounds like you are discribing regirgitation rather then vomiting. With regirgitation the cause is usually megaesophagus. This is usually a progressive and serious disease. In the short term for this disease feeding him soft food elevated off the ground he may do much better initally, but be prepared because this is usually a chronic disease that in my experience is progessive. To diagnose this disease we take an x-ray immedaitely after giving the ferret oral barium. The esophogus will appear abnormally large. It can be tough to diagnose early in the course of the disease because initally the esophogus may not be enlarged but the walls of the esophogus are too weak to contract properly. Aspiration pneumonia can be a result of this disease if the ferret inhales some food into the wind pipe. There is a fairly new drug called cisapride that is used on dogs and cats with megaesophagus with good results. Although I have not used it in ferrets it is certainly promising. If the treatment with pepto, flagyl, amoxi and zantac seems to be working he could have a helicobacter infection as well. This treatment is a good one for this bacteria and ulcers. Good Luck Dr Weiss [log in to unmask] [Posted in FML issue 1121]