Standard Drug Testing Levels & Detection Timeframes.

Below is a table listing the standard US drug testing levels and timeframes that the drug is detectable in your system.

***This table should be used as a general guideline. All listed detection times are based on the “average” timeframes. There are many factors that may affect the amount of time it takes for the metabolite of a drug to leave the system. To read more about these factors click here.

Drug
Standard Lab Testing Level
Detection Time in Urine
Detection Time in Saliva
6-Acetylmorphine (6-AM)
10 ng/mL
24 Hours
< 24 Hours6-AM Drug Tests
Amphetamine (AMP)
1000 ng/mL
2-4 Days
Barbiturates (BAR)
300 ng/mL
4-7 Days
Benzodiazepines (BZO)
300 ng/mL
3-7 Days
Buprenorphine (BUP)
5 ng/mL
2-4 Days
Cocaine (COC)
300 ng/mL
2-4 Days
Ecstasy (MDMA)
500 ng/mL
1-3 Days
Fentanyl
5 ng/mL
4-5 Days
Marijuana (THC)
50 ng/mL
15-30 Days
Methadone (MTD)
300 ng/mL
3-5 Days
Methamphetamines (METH)
1000 ng/mL
3-5 Days
Opiates (OPI)
2000 ng/mL
2-4 Days
Oxycodone (OXY)
100 ng/mL
2-4 Days
Phencyclidine (PCP)
25 ng/mL
7-14 Days
Tricyclic Antidepressants (TCA)
1000 ng/mL
7-10 Days