Are they working? I am familiar with Prilosec. I can't find my sheet, I'll keep looking. Anyway, Prilosec inhibits acid production, thus stopping the ulcer from getting worse. However, I heard of a newer version of this called Nexia or Nexium or Nex something. This is very new and inhibits acid production even greater, and also allows the stomach ling to heal, as with the esophogas. If I find my info I'll post it, but at least ask your doc about the Nex. It is newest so ... Good luck, I hope I helped.