Sounds like the new aspirin product I saw that dissolves after it leaves your stomach
I take a long acting pain medication and have to eat with it so it will metabolize properly. If I don’t eat, It seems to be less than 50% effective.
Sometimes I’m just not in the mood to eat when I’m in pain.
That is not a “new” product. See: Ecotrin.
Parke-Davis/Warner Lambert developed and patented a pH dependent enteric coating for aspirin and other drugs/agents that have an adverse effect on the human stomach. Patent was in the 60’s, now expired.
Enteric coating: https://en.wikipedia.org/wiki/Enteric_coating
Aspirin, for example (salicylic acid) when taken settles on the stomach lining. The cells lining the stomach include specialized cells which secrete prostaglandins which protect against the Ph 2 stomach acid dissolving the stomach or pitting it, causing bleeding in the stomach and ulcers.
The coating of Ecotrin (and now all generic coated aspirin) is pH 2 acid resistant and the pill passes through the stomach to the duodenum, which has a pH of 5 or 6. The coating comes off the outside of the pill and delivers safely the full dose of aspirin into the intestines. NO damage to the stomach wall lining.