Taking a PPI (I think it was generic protonix) truly cured very severe heartburn I'd developed from eating a funny diet. After a few months, I got my doctor to prescribe me a half-size pill, then tapered off and I've been permanently free of heartburn. Maybe footnotes to https://en.wikipedia.org/wiki/Proton-pump_inhibitor#Indicati... explain why. But I remember reading that the PPI permanently shut down a bunch of acid production in your stomach, so after a while, you may be in a good state.