The Altered mental state page has been updated with information about the use of dextromethorphan/quinidine for behavioural control.
Cummings, JL, Lyketsos, CG, Peskind, ER, et al. Effect of Dextromethorphan-Quinidine on Agitation in Patients With Alzheimer Disease Dementia: A Randomized Clinical Trial. JAMA 2015;314(12):1242-54. http://www.ncbi.nlm.nih.gov/pubmed/26393847.