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Drug Detection Periods


Abbreviation Drug Name Cutoff level Approximatate
Detection in Urine
Approximate
Detection in Saliva
AMP Amphetamines 1000 ng/ml 2-4 days 1-3 days
BAR Barbiturates 300 ng/ml 4-7 days  
BZO Benzodiazepines 300 ng/ml 3-7 days  
COC Cocaine 300 ng/ml 2-3 days 1-3 days
MAMP Methamphetamines 1000 ng/ml 3-5 days 1-3 days
MDMA Ecstacy 500 ng/ml 1-3 days  
MTD Methadone 300 ng/ml 3-5 days  
MOP Opiates 300 cutoff 300 ng/ml 2-4 days  
OPI Opiates 2000 ng/ml 2-4 days 1-3 days
OXY Oxycodone 100 ng/ml 2-4 days  
PCP Phencyclidine 25 ng/ml 7-14 days 1-3 days
PPX Propoxyphene 300 ng/ml 1-2 days  
TCA Tricyclic Antidepressents1000 ng/ml 7-10 days  
THC Marijuana 50 ng/ml 15-30 days up to 14 hours
COT Nicotine 200 ng/ml 3-5 days  


Drug detection times indicate the period after you last took a drug, that drug testing can reveal its presence or resulting metabolites in your specimen. The amount of time that a drug metabolite remains detectable in urine can vary, depending on the following factors:

Amount and Frequency of Use: Single, isolated, small doses are generally detectable at the lower boundary. Chronic and long-term use typically result in detection periods near or at the upper boundary.

Metabolic Rate: Individuals with slower body metabolism are prone to longer drug detection periods.

Body Mass: In general, human metabolism slows with increased body mass, resulting in longer drug detection periods. In addition, THC (marijuana's active ingredient) and PCP are known to accumulate in fatty lipid tissue. Chronic users, physically inactive users, and individuals with a high percentage of body fat in relation to total body mass are prone to longer drug detection periods for THC and PCP.

Age: In general, human metabolism slows with age, resulting in longer drug detection periods.

Overall Health: In general, human metabolism slows during periods of deteriorating health, resulting in longer drug detection periods.

Drug Tolerance: Users typically metabolize a drug faster once a tolerance to the drug is established.

Urine pH: Urine pH can impact drug detection periods. Typically, highly acidic urine results in shorter drug detection periods.

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