I am certainly familiar with "screamers" in LTC settings. We have lady who is absolutely, totally confused and yells (or used to) all day long at her spouse. The doctor had prescribed Ativan at first. It helped for awhile until the dementia worsened. Next, Risperdal was prescribed...it also seemed to help for awhile. Now she is taking Zoloft - 100mg qhs...and she is doing so much better. She still takes Risperdal also. Good luck....Oh, we tried all other things- i.e. 1 on 1 interaction, blah, blah, blah.....we all were needing relief.... She is quiet for awhile...until the dementia worsens, anyway.