Anonymous

How Far Back Can A Blood Drug Test Detect Drugs?

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Wesley Varga Profile
Wesley Varga answered
You would have to tell us what drugs you have taken and how long its been since you used it.
Bruce O Profile
Bruce O answered
Maybe you could rephrase this question and ask it again cause I'm not sure what you mean.
Pa Rod Profile
Pa Rod answered
Amphetamine- 12-24hrs
Cannabis- single use 2-5 days/ habitual use 2 weeks
PCP and Methamphetamine - 1-5 days
Unknown -Heroin, Codeine, Morphine, Cocaine, Benzodiazepines, Barbiturates

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