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A member asked:
Allegra (fexofenadine) -d 12 hour allergy & congestion can show up on a drug test as amphetamine?
A doctor has provided 1 answer
Possible: Since the Pseudoephedrine in the d is often used to manufacture amphetamine, i would guess that it can show up in a blood test. I would advise you to stay off of any decongestants if you are subjected to random drug test until i can look this up.
Answered 4/2/2016
4.9k views
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