I understand your concern. Xalkori has crizotinib
which is known to cause nausea, GERD, diarrhoea
, vomiting and esophageal disorders. This drug is known to cause a variety of adverse effects related to the GI tract and it is very much possible that your wife's complaints are due to this drug. I would suggest that you speak with her oncologist
and consider a OTC proton pump
inhibitor like Prevacid. This should help relieve her symptoms considerably. Also, small frequent meals and avoiding excessive caffeine and alcohol should also help.
Hope that addresses your concern