I do remember reading this a while ago too but they are still being sold here. I take Pantoprazole 40mg now and they do seem to be helping as I have not had bad burps and acid reflux recently. I looked at what they contain: The other ingredients are mannitol, crospovidone (type B), anhydrous sodium carbonate, sorbitol (E420), calcium stearate in the tablet core and hypromellose, povidone (K25), titanium dioxide (E171), yellow iron oxide (E172), propylene glycol, methacrylic acid - ethyl acrylate copolymer, sodium laurilsulfate, polysorbate 80, macrogol 6000 and talc in the film-coating.
Hahaha Need to be a scientist at least to understand all this lot !
My Mum always used Rennies for years and years. She always had some handy !