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Doctor insights on: How Long Does Xanax Stay In Your System For A Drug Test

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Dr. Alan Ali
905 doctors shared insights

Alprazolam (Definition)

Alprazolam is a short acting benzodiazepine, it does not last long in the system . So when used regularly with multiple doses to treat anxiety, it is associated with inter-dose withdrawal, tolerance and a resulting increase level of baseline anxiety. So in anxiety clinics, we use it only in cases of " flight , dentist or other infrequent anxieties, ...Read more


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Took 0.25 mg of Xanax (alprazolam) for the first time in 4 weeks. How long will it stay in my system for a drug test to be able to pick it up? Really worried. Took Monday night, test is Thursday at noon.

Possibly: Xanax has a half-life of 6-26 hrs. Other factors are your body's metabolism rate, fluid intake and other factors. Urine detection/positivity for alprazolam (Xanax) can range from 1-6 weeks. However, with just one dose, an estimate of 6 days is a likely possibility for positive detection in urine. ...Read more

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Took a half of a Xanax (alprazolam) bar for the first time... And I have a urine drug test coming up how long will it take to be out of my system I'm very worried?

Depends.: The half life of 0.5 Xanax, (alprazolam) immediate release is 11.2 hours. The full \range is 6.3 to 26.9 hours. So , thee answer depends on when you have your urine drug test. ...Read more

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Took half a pill of Xanax (alprazolam) (1mg)for the first time ever. How long will it stay in my system to pass a pee drug test? Please help

Xanax (alprazolam): has a half life of 12 hours. So 75% is gone in 1 day. Whether a drug test detects it depends on how sensitive the drug test is. As a rule of thumb it take 5.5 times the half life to completely eliminate a drug so 5.5 times 12 hours is about 3 days. To be safe give it a week. ...Read more

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How can I get xanax (alprazolam) put of my system for a urine drug test? What can I do to help?

Passage of time: It depends on the sensitivity of the screening test. Urine can show positive for about a week after taking Xanax (alprazolam). There are other factors such as your overall health, liver condition and presence of other drugs competing for metabolism. Time is your best bet. ...Read more

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How long will xanax (alprazolam) be detectable in a drug test.1-2mgs. Have a possible drug test in 8 days. Can they detect even a small amount.

Yes: Amounts as little as nanogram levels (0.000001 mg) are detectable in urine. Depending on the activity level of metabolic enzymes in your liver (some people are "fast metabolizers" based on their genetics and enzymes can be blocked or enhanced by other drugs and foods) the half-life is around 11hrs. So it can take days to weeks to clear. Xanax (alprazolam) can be dangerous and should only be taken by script. ...Read more

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How long can Xanax (alprazolam) be detected in saliva drug test?

Benzos: This is the most widely disputed drug class for testing. It really does depend on how much and for how long one has been taking it and if there was recent past heavy use. It has been easily found in these tests for up to six weeks and even longer with some addicts. The standard online data says one to six weeks. ...Read more

Dr. Alan Wartenberg
544 doctors shared insights

Drug Testing (Definition)

It is the process of examining body fluids or tissue for evidence of chemicals taken or not taken. It does not diagnose addiction however this a ...Read more


Xanax (Definition)

Alprazolam is a short-acting benzodiazepine which is a kind of sleep-inducing drug ...Read more