symptoms and signs http://www.cesar.umd.edu/cesar/drugs/dxm.asp http://www.cesar.umd.edu/cesar/drugs/dxm.asp "Dextromethorphan (DXM) | CESAR" Center for Substance Abuse Research "Dextromethorphan (DXM)" dextromethorphan "Dextromethorphan (DXM)" DXM (Dextromethorphan) "Dextromethorphan (DXM) | CESAR" http://www.cesar.umd.edu/cesar/drugs/dxm.asp http://www.cesar.umd.edu/cesar/drugs/dxm.asp Dextromethorphan (DXM) | CESAR http://www.cesar.umd.edu/cesar/drugs/dxm.asp Dextromethorphan (DXM) | CESAR dextromethorphan Dextromethorphan (DXM)