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Will zanax produce a false positive for marijuana in a drug screen

A 42-year-old male asked:
Dr. Andrey Lev-weissberg
17 years experience Internal Medicine
Drug test: Marijuana is usually detectable in drug tests from 3 days up to 10 days. heavy users can produce positive tests for up to 10 months after stopping. Th ... Read More
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A 37-year-old female asked:
Dr. William Simon
31 years experience Integrative Medicine
Xanax (alprazolam): Xanax (alprazolam) has a short half life and may not show up in a drug screen if not taken on a regular basis. If you have your own prescription that ... Read More
A 45-year-old female asked:
Dr. James Ferguson
45 years experience Pediatrics
Depends: Define "small"? A small amount 10 days ago should be clear from your urine but any heavy use might show up for months (depending on the sensitivity of ... Read More
A 37-year-old female asked:
Dr. Elizabeth Wallen
34 years experience Pediatrics
Urine test: Probably not. Test your hair, it's possible.
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A 34-year-old male asked:
Dr. Samuel Bayles
18 years experience Child Psychiatry
Probably fine: you are probably fine. marijuana tests are threshold tests meaning that a very small amount will not usually cause a positive test. if you want to dou ... Read More
A 54-year-old female asked:
Dr. Robert Grindstaff
37 years experience Addiction Medicine
It depends: on whether the test is a rapid test cup or sent to the lab. If the rapid cup they can not tell the difference if they send it off they can tell the ... Read More
A 37-year-old female asked:
Dr. Edgar Mendizabal
54 years experience Internal Medicine
It's half life: is 12 hrs but traces coukd still be detected 2 weeks later
A member asked:
Dr. Alan Ali
Dr. Alan Ali answered
31 years experience Psychiatry
Xanax (alprazolam): It has average half-life of 6-20 hours, and the time it remains positive in your urine drug screen depends on the length & frequency of daily use, ... Read More
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A 37-year-old female asked:
Dr. Saptarshi Bandyopadhyay
20 years experience Hospital-based practice
Depends on half life: The half life of a drug is how long it takes for the concentration of it in your blood stream to fall to 50% of the maximum (which is right after u ta ... Read More
A 56-year-old female asked:
Dr. Alan Wartenberg
48 years experience Addiction Medicine
Can't say: Some employers do screens for many, many drugs and if they screen for benzodiazepines it may well show up, although it is a very low dose of a benzo t ... Read More
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