Xanax is a medicine that is used to help ease tenseness, anxiety and nervousness, and is prescribed by many doctors for individuals suffering with anxiety and depression. The drug is addictive, and works by slowing down the central nervous system. By slowing down the central nervous system and the part of the brain that controls emotions, an individual will feel less anxious and be affected less by the anxiety that might be a side-effect of several medical complaints.
Studies have proven that the immediate release tablets, Xanax, are able to show peak concentrations within the blood plasma between just one or two hours. The known average half-life of Xanax is 11 hours and 12 minutes. This time it takes the blood to eliminate half of the drug.
Since only half the drug is metabolized every 11 hours and 12 minutes, the actual amount of time it takes for xanax to be undetectable in your bloodstream is dependent upon many factors, primarily the amount of xanax you take and the detection limits of the lab. In 22 hours and 24 minutes (two half-lives), your body will have metabolized 75% of the xanax in your system. In summary, the more xanax you take, the longer it will remain in your bloodstream.
If you take Xanax XR, then it’s still about the same. This is an extended release kind of Xanax that has a slower absorption rate, but again, studies have shown time and time again that the drug takes about the same amount of time as normal Xanax to leave the body altogether.