I just wanted to add that you wrote opiates (heroin), but it is not just heroin that the opiate test tests for, nor is heroin the only thing that would cause a positive in an opiate test; I tested positive numerous times on a standard 5 panel test for opiates from hydro use...I guess this is not a problem if you show them a script, but the people who were testing me were not pleased with an OP script, so just a warning to anyone who might not know that hydro will cause a positive for opiates on the standard test!