Until now there is no scientific evidence that Zantac causes cancer but there are also many cases accepted by lawyers about cancer caused by Zantac and some kinds of cancers which are caused by Zantac are: Colon cancer, Prostate cancer, Kidney cancer, Liver cancer, Stomach cancer, Breast cancer stomach, breast, esophageal, bladder, colorectal, liver, pancreatic, ovarian prostate and melanoma cancers.