In case where one is allowed to take a pill on shabbos, does it matter whether there are words on it?
Without getting into the issue of when you are allowed to take pills on shabbos, the fact that the pill will disintegrate in the person’s stomach and the words will get erased is not a problem. This is because it is not the normal way to erase letters this way, and besides it is permitted to break letters it the course of eating, while the food is in ones mouth. Breaking letters when something is in ones digestive system is surely included in this.
M:B 340- 17.