Why don’t you get proper medication to deal with this as opposed to antacids? I also had bad reflux and Omeprazole took care of it pretty quickly. OTC antacids were no help really.
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.
I took omeprazole and similar derivatives for extended periods and while they annihilate symptoms, after a couple weeks of not taking them, symptoms always come back. Also it gives me itches in the long run which is part of the list of side effects. I probably have work to do around diet and need to consult a doctor, definitely (they are prescription medicine where I live and it's not always easy to get an appointment).
