I am prescribed 2mg xanax to take 3x daily for anxiety. I am having a sleep-deprivation EEG done on 7/17/12. They are going to try and induce a seizure. From what I have read on this kind of EEG you are not supposed to take any of your medications the day before or the day of the test. I have been on this dose of xanax for about 2 weeks now, so will it be out of my system by then? Also I don't want to fudge up the EEG by going cold turkey on my meds and having a seizure because of that.
The half life of a drug is the time it takes for the body to reduce the amount of drug in your system by half.
Taking a higher dose will not affect the half life.
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.
- Xanax Information for Consumers
- Xanax Information for Healthcare Professionals (includes dosage details)
- Side Effects of Xanax (detailed)
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