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Hello from JustAnswer.
The Suboxone can be identified on a confirmatory drug test, such as GC/MS. A screening test would not be able to identify the Suboxone, but if they want to know whether you are taking any opiates beyond the Norco, they would routinely check a confirmatory drug test.
If you have been off the Norco for a month, it is not clear why you would need a doctor to prescribe the Suboxone. Could you clarify the situation?
I have not heard back about clarification of the situation.
If you have not taken the Norco for a month, it would generally not be necessary to take the Suboxone. But if it were taken, it could be detected by a confirmatory urine drug test.