text: Yes, if the test is set up to detect opiate metabolites  and not just the opiates then selves, it will pick up dextromethorphan since it is just the dextrorotatory isomer of an opiate.  However the standard "point of care" rapid Urine Drug Screen (UDS) is set up not to detect DXM.  \n\nThe half life of DXM is only 2-4 hours and its most common metabolites are another 4-6 hours.  2 days should be enough to clear it from the body.  \n\nLots of water and a diuretic will quickly decrease drug concentrations.  However many common drugs of abuse are lipophilic and hang around longer depending on how much body fat a person has.\n\nThe best way to pass a drug test is not to take drugs...