I have been taking lunesta for a good couple of years now and now i'm dealing with taking drug tests once a month at random and i've been failing for benzodiazepines. the only thing i take that many people have told me will show up sometimes is lunesta and benadryl. I just want some concrete proof because my doctor believes only in what she thinks is right even though my sleep specialist told me that a metabolite of the medication breaks down as a benzodiazepine, but i'm looking for concrete proof from someone who knows and ask a doctor wants something like 20 bucks to answer my question so i figured this may be the best alternative. thank you for your time in this matter. I fail for benzos again and i get kicked out of the detox program i'm in, so this is a big deal I figure out what's causing me to be failing these tests.