Because it wouldn't metabolise the same. It would be much slower and it would cause a lot of stomach issues. I would imagine there would be a lot of pain. Even if you took meto, it does not work for everyone with gastroparesis. Antacids will not do much either, I don't know why they suggest that, maybe to make people feel safer. They will do nothing. Basically, you're taking enough to pass out ASAP. Everyone's metabolism is different and that's why people react so differently to SN. It's definitely not a sure thing to bring an easy death. It's very dependent upon the person. You could suffer with stomach pain and hypoxia whilst conscious very easily.