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How Long Do Benzodiazepines Stay in Your System?

Detection Timetable Depends on Many Variables

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Updated April 28, 2014

How long does Benzodiazephines last
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Determining exactly how long benzodiazepines are detectable in the body depends on many variables, including which kind drug test is being used. Benzodiazepines - also known as Ativan, Halcion. Librium - can be detected for a shorter time with some tests, but can be "visible" for up to three months in other tests.

The timetable for detecting benzodiazepines in the system is also dependent upon each individual's metabolism, body mass, age, hydration level, physical activity, health conditions and other factors, making it almost impossible to determine an exact time benzodiazepines will show up on a drug test.

Benzodiazepines Drug Tests Timetable

The following is an estimated range of times, or detection windows, during which benzodiazepines can be detected by various testing methods:

Urine Test: 1-6 weeks
Blood Test: 6-48 hours`
Saliva Test: 1-10 days

Benzodiazepines, like like many other drugs, can be detected with a hair follicle drug test for up to 90 days.

Sources:

American Association for Clinical Chemistry "Drugs of Abuse Testing." Lab Tests Online. Revised 2 January 2013.

LabCorp, Inc. "Drugs of Abuse Reference Guide." Accessed March 2013.

OHS Health & Safety Services. "How long do drugs stay in your system - including alcohol?." Accessed March 2013.

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