Phenylephrine False Positive Drug Test

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Can phenylephrine show a false positive for phentermine?

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I just got bacl from my p.o. And I put clean urine in a nasal spray bottle because I thought it would be easy to get away with... Well I ended up failing for suboxone so I don't recommend anyone doing that. Just a warning...

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I took Sudafed PE the day before I had my monthly drug test and it didn't show up as a false positive for anything. They do say that the phenylephrine may cause a false positive for methamphetamine but it didn't on me. I asked the nurse about this when I went in and she told me if you buy the Sudafed that's behind the counter that you have to sign for that. It will show up as methamphetamine because it's what people use to make methamphetamine. Hope that helps you out.

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