I found the article on this. But sadly, for me, I've been on H2, H1 for over 3 years and this didn't work for me. It did help with MCAS, but I'm not well. Appears to tweak T cells.
Here's article.
Cimetidine, Ranitidine, and Epstein-Barr Virus Infection To THE EDITOR: Patients with chronic Epstein-Barr virus infec-tion (1) might be relieved to have their syndrome diagnosed but are usually discouraged when told there is no recognized effective therapy, because their symptoms are often disabling. I have treated ten such patients, who had dysfunction from 9 months to 15 years. All had antibody to Epstein-Barr early antigen in titers of 1:40 or greater. Because of my success in treating acute mononucleosis with cimetidine (2), I decided to try cimetidine or ranitidine on these patients. In the usual doses prescribed for treatment of peptic ulcer disease, every one of these patients had a major or complete remission in 1 or 2 days. If treatment was stopped, the symp-toms promptly returned. An unusual response to the H2 block-ers in these patients was stimulation and insomnia. These side effects resolved with time or reduction of dosage. Some patients have now been receiving this therapy for more than a year, and its efficacy has not diminished. My hypothesis is that the suppressor T-cell hyperfunction induced by herpesvirus infections is responsible for much of the morbidity of these disorders, perhaps by secretion of lympho-kines, although none of these patients have had an alteration of the helper/suppressor T-cell ratio. I submit these anecdotal findings so that other patients with this disorder may be helped and so that someone with a larger patient population might do a double-blind experiment. JAY A. GOLDSTEIN, M.D. 500 South Anaheim Hills Road; Anaheim Hills, CA 92807 REFERENCES 1. JONES JF, RAY CG, MINNICH LL, HICKS MJ, KIBLER R, LUCAS DO. Evidence for active Epstein-Barr virus infection in patients with persis-tent unexplained illnesses: elevated anti-early antigen antibodies. Ann In-tern Med. 1985;102:1-8. 2. GOLDSTEIN J A. Cimetidine and mononucleosis [Letter]. A