http://articles.mercola.com/sites/articles/archive/2001/12/19/benadryl.aspxElderly hospital patients who are given a common type of sedative to help them sleep may be at increased risk of symptoms of delirium, including disorganized speech, poor attention level and altered ingredient in a range of antihistamines and sleep aidsenCommunityServer 2008.5 SP1 (Build: 31106.3070)