Hello welcome in H.C.M. I have gone through your query regarding repeated vomiting to your boy friend after taking medicines. He is supposed to be a kidney patient. You have given very less information about basic illness of your boy friend as it is not clear to us about - - Name of disease. - What are the primary symptoms of his kid disease. - what investigations had been done to diagnose the disease and there values. - If he is a kid patient than what kind of diet is advice to him and what he is taking. If you tell us about the disease in above heads than we will be in position to tell you about your boy friend. vomiting itself is a presenting symptom some times in kidney disease. Waiting for your mail. Regards.