Hi Barbie, I know this is a question that you have for Heather. I did find a couple of things that I thought might interest you. Aspirin, ibuprofen and even vitamin C tablets can irritate your GI mucosa. Aspirin is a salicylate. Heather says: Menthol and methyl salicylate are the main active ingredients of peppermint, and they both have powerful analgesic (pain-killing) properties. It'll be interesting to see what Heather says because I'd like to know too.