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If they are barbiturate based then they will.
No, lorazepam will show up as a benzodiazepine on a drug test.
no
yes - it shows up as a barbiturate
Yes
Fioricet will show up on a 12 panel drug test, but as long as you have it on your prescribed prescription list it will not be a problem. This drug will show up on your drug test for a month. If you wish it not too, try drinking cranberry juice prior to your test.
yes it can
No it does not
No, clonazepam will show up as a benzodiazepine on a drug test.
No
It will show up as barbiturate's which is the same category. However if you have a prescription then it really doesn't matter.
No. Only a barbiturate will yield a positive barbiturate test, barring false-positives