I have been taking oral 500 mg Naproxen along with Endone for severe sciatic pain. I have Rheumatoid Arthritis, Coeliac Disease, Hashimoto s, chronic anaemia, and chronic gastritis. The gastritis flares up terribly even after 1 dose of Naproxen. I already take Zoton Fastabs twice a day. Naproxen as suppository has not been available here for a long time. Can I take the oral tablets rectally to attempt to bypass my stomach problems? I have been reading the absorption this way is similar to oral, but I am concerned about causing problems.