“…The impact of discontinuing dementia medications in these patients has not been well studied. Furthermore, the lack of evidence available to guide clinicians on when to discontinue therapy (Birks, 2006;Herrmann et al, 2007a;Herrmann and Gauthier, 2008) and reports of adverse events associated with discontinuation (Doody et al, 2001;Singh and Dudley, 2003;Holmes et al, 2004;Simpson et al, 2005;Okazaki et al, 2006;Daiello et al, 2009;Shega et al, 2009) may also explain the variation in decisions made by physicians in this study.…”