Aggressive behaviours in long-term care (LTC) is a difficult health care issue to manage. One method that has been over-used is the prescription of antipsychotics for the behaviours and psychological symptoms of dementia (BPSD). This high prevalence of use is a recognized health care problem in Ontario and around the world; increased antipsychotics use is associated with increased falls and mortality. Existing strategies are educational in nature and are not systematic; the goal of this study is to develop a systematic algorithm to help LTC physicians deprescribe and taper antipsychotics safely and effectively.