A member asked:

How long does it take butalbital to excrete the body and not show on urine exams?

A doctor has provided 1 answer

Wait 100 hrs: Half life is 35 hours so by after 70 hours or should be out of your system. If you have baseline kidney disease, this haf time will increase. Recommend waiting 100 hours before doing urine check

Answered 7/19/2018

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