Sucralfate
"I took the pill (awful to swallow) form for about 2 1/2 months...(per a pharmacist- I dissolved it in about an ounce of cold water, stir and chug it then drink about 8ounces of cold water.). They dissolve it about ten seconds and have a nasty chalky taste but it has healed my gastritis which was extremely painful. It started helping in about a week but took two months altogether to heal.  The side effects were nausea, back and neck pain, constipation.... lost weight because I was so sick before I started taking it. Good luck everyone."