^ Nobody's gonna know for sure man. Keep your fingers crossed that the amount big actual heroin in there was miniscule enough so you don't have to worry about dropping dirty or having it on your receptors when you dose the naltrexone. My opinion is that you'll be good, but don't take my words as gospel.
Unless you can delay your intake by a day then there's not much you can do except hope and look up diluting your urine and that's probably the most I can say ragarding the UA.
Unless you can delay your intake by a day then there's not much you can do except hope and look up diluting your urine and that's probably the most I can say ragarding the UA.