how long does fioricet stay in urine test
I took fioricet a few times, around 9 pills. How long will it stay in my system? From wikipedia Butalbital has a half-life of about 35 hours... does that mean in 70 hours I'll pass? Butalbital is the barbiturate in fioricet... show more I have a drug test between Oct. 1 and Oct. 15, unknown when as of now. I took fioricet a few times, around 9 pills. How long will it stay in my system? From wikipedia Butalbital has a half-life of about 35 hours...