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If I take a 2mg xanax on friday , howlong will it stay in my system ?

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suzanne66 14 Nov 2010

The mean plasma elimination half-life of Xanax is reported to be 11.2 hours. The full range is from 6.3 to 26.9 hours in healthy adults.

For a drug to be totally eliminated from your system it takes 5.5 times the half life.

If we take the maximum time of 26.9 hours times 5.5, it will be in your system for approximately 148 hours i.e. 6 days, after your final dose - which in your case will be till about Thursday.

https://www.drugs.com/pro/xanax.html

See also: https://www.drugs.com/answers/how-long-does-xanax-stay-in-your-system-41135.html

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