Also, I read the aspirin link, but it didn't address my question...in one paragraph, it said:
Although the animal studies that showed stomach damage from aspirin often used single doses equivalent to 10 or 100 aspirin tablets, the slight irritation produced by a normal dose of aspirin can be minimized by dissolving the aspirin in water. The stomach develops a tolerance for aspirin over a period of a few days, allowing the dose to be increased if necessary. And both aspirin and salicylic acid can be absorbed through the skin, so rheumatic problems have been treated by adding the drug to bath water.
My husband's father developed some pretty severe stomach problems from years of taking aspirin daily. The ill-effects i'm familiar with come from n=1 stories by people who've been taking aspirin for years, not from rat studies that involve 100x/daily dose. I could accept that their stomach problems are unrelated to aspirin, but it has been shown to decrease stomach mucosa, which over time leads to ulcers. I don't see how this is something a person would adapt to in a few days, but if there is research out there proving it, I'd love to read it.