Flexeril or Cyclobenaprine is actually given to addicts because of its' lack of opiods or the ingredient that tends to keep addicts abusing other pain medications such as oxycontin or codeine. All it is is a muscle relaxant. I do believe it shows up in tests as something like a tricyclic anti-depressant or a benzodiazapine, but if you have a prescription for it, don't worry about it. It is not considered a controlled substance at all so I do not think anybody looks for it in urine tests. However, your best solution is to come clean and just say that you took the drug since it is not considered an addictive substance. It is considered a safe alternative to opiates for addicts.
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