The last time around the 150mg of Zantac did not cut it with the stomach acid at all. I ended up downing Tums and Pepto like they were going out of style. I mentioned this to the neuro before this treatment and he said that Nexium would work much better. I have to agree it has completely kept all the stomach acid at bay. The bad side is that it cost more because there is not a generic – I needed a Nexium before I paid that pharmacy bill!