Okay, the Aspirin/Butalbital/Caffeine/ also known as Fioricet shouldn't show up in a drug screening, the Codeine will and it will be detectable for 2-4 days by a urinalysis, 12 hrs for a blood test, 1-4 days in a Saliva test, and pp to 90 Days in a hair test.
fioricet WILL show up on a drug screen because it is a barbiturate. I failed a drug test 5 days after I took one so I think they stay in your system 5-7 days.
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