How Long Does Xanax Stay In Your System For Drug Tests?

The length of time xanax stays in your system depends largely on your physiological makeup.  That includes your height, weight, Body mass index, metabolism, daily level of exercise, your current level of stress, and many other factors. The frequency in which you use Xanax also affects how long the drug stays in your system.  Some people take xanax 2mg bars three times daily, which means there is much more xanax accumulated in this persons system that a first time user.

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The average Xanax Halflife is 3 days. This average is based on taking your prescribed dosage, ex the dosage given to you by your doctor based on all the factors listed above.  If you have taken more than your prescribed dosage the drug can stay in your system up to 5 days, however this is unlikely as Benzodiazepines are generally metabolized very quickly by the human body. It has been reported that a person with a fast metabolism  can take a 2mg xanax bar in the morning, and have no traces of the drugs in their body in 24 hours.

However, unless you have a very fast metabolism its recommended you follow the law of averages and assume it will take 3 days for the xanax to exit your system completely. As a rule of thumb, saliva drug tests can only detect drugs in your system taken within the last 3 hours. Urine up to 72 hours depending on your metabolism, and blood tests up to a month.