Drug Detection Times
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1Approximate Detection
Approximate Detection
Drug
Cut-Off Level
Time in Urine
Time in Saliva
Amphetamine (AMP)
1,000 ng/mL
2-4 Days
1-3 Days
Barbiturates (BAR)
300 ng/mL
4-7 Days
-
Benzodiazepines (BZO)
300 ng/mL
3-7 Days
-
Cocaine (COC)
300 ng/mL
2-4 Days
1-3 Days
Ecstasy (MDMA)
500 ng/mL
1-3 Days
-
Methadone (MTD)
300 ng/mL
3-5 Days
-
Methamphetamine (MET)
1,000 ng/mL
3-5 Days
1-3 Days
Opiates (MOR)
300 ng/mL
2-4 Days
-
Opiates (OPI)
2,000 ng/mL
2-4 Days
1-3 Days
Phencyclidine (PCP)
25 ng/mL
7-14 Days
1-3 Days
THC (THC)
50 ng/mL
15-30 Days
6-12 Hours
Tricyclic Antidepressants (TCA)
1,000 ng/mL
7-10 Days
-
Propxyphene (PPX)
300 ng/mL
1-2 Days
-
Oxycodone (OXY)
100 ng/mL
2-4 Days
-
Amphetamine (AMP300)
300 ng/mL
2-4 Days
-
Cocaine (COC150)
150 ng/mL
2-4 Days
-
Methamphetamine (MET500)
500 ng/mL
3-5 Days
-
NOTE: The above chart gives approximate detection periods for each substance by test type. The ranges
depend on amount and frequency of use, metabolic rate, body mass, age, overall health, drug tolerance, and
urine pH.
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