... system after last dose?
Acetaminophen/Butalbital/Caffeine - how long will Acetaminophen/Butalbital/caffiene remain in your?
Question posted by dlviger on 11 Feb 2010
Last updated on 22 February 2010 by suzanne66
Answers
suzanne66
22 Feb 2010
The plasma half-life is about 3 hours.
This means that every 3 hours, half of the previous amount of drug in the body disappears.
It usually takes around 5.5 half lives of a medicine before it is eliminated from your system ie 16.5 hours (as a general guide).
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acetaminophen, butalbital, caffeine
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