How long Xanax will show up in Drug Test
Originally Posted by dtothebhat
I found this information on a medical website...hope it helps.
The length of time any drug stays in your system will vary. In large part, it depends on your physiological makeup (height, weight, your amount of body fat, your age, current state of health, whether or not you exercise mildly-aggressively-or at all). Whether or not you are undergoing any degree of stress (your "state of mind") at the time you ingest drugs can play a part as well.
Still other considerations include your "frequency" of use (1x per day? 3-5x per day?), the "quantity" of drug you used each time, and the "length of time" (days? weeks? months?) of your consistent drug-use prior to your drug test. Even the quality ("potency") of the drug you ingest determines "how long" the drug is detectable in your system when your urine is analyzed (tested) at the lab.
However, for most people, detectable levels which will show up as a "positive" in a laboratory drug test stay in the body for these approximate periods of time for Benzodiazepines (e.g., Ativan, Halcion, Librium, Rohypnol, Valium; Roofies, Tranks, Xanax), most, 2-3 days; a few, 4-8 days.
However, for chronic drug users, drugs (other than alcohol) can be retained in the system much longer by the chronic-user after their last use.