Mobile Site ›

Approximate Detection Times Table —

All Specific Drug Groups

Last Updated January 2011

  LOQ (ng/mL) Detection Time* up to
Amphetamine-Type Stimulants
     Amphetamine
50
3 days
     Methamphetamine
50
3 days
     3,4-Methylenedioxyamphetamine (MDA)
50
2 days
     3,4-Methylenedioxymethamphetamine (MDMA)
50
2 days
     Phentermine
50
     Ephedrine/pseudoephedrine
Not quantitated
5 days
Barbiturates
     Long-Acting
          Phenobarbital
100
15 days
     Intermediate-Acting
          Butalbital
100
7 days
          Amobarbital
100
3 days
     Short-Acting
          Pentobarbital
100
3 days
          Secobarbital
100
3 days
Benzodiazepines
     Long-Acting
10 days
          Diazepam
100
          Nordiazepam
100
     Intermediate-Acting
5 days
          Alprazolam
100
          Lorazepam
100
          Oxazepam
100
          Temazepam
100
          Chlordiazepoxide
100
          Clonazepam
100
          Flunitrazepam
50
     Short-Acting
2 days
          Triazolam
100
          Flurazepam
100
Buprenorphine
     Buprenorphine
0.5
7 days
     Norbuprenorphine
0.5
7 days
Cocaine & Metabolite
     Cocaine
50
<1 day
     Benzoylecgonine
50
5 days
Fentanyl
     Fentanyl
0.2
3 days
     Norfentanyl
1.0
3 days
Ketamine
     Ketamine
25
2 days
     Norketamine
25
2 days
Lysergic Acid Diethylamide (LSD)
     LSD
0.5
<1 day
     2-Oxo-3-hydroxy-LSD
5
5 days
Marijuana/Cannabis (THC-COOH)
     Single Use
3
3 days
     Moderate Use (4 times per week)
5 days
     Heavy Use (daily)
10 days
     Chronic Heavy Use
30 days
Methadone
     Methadone
100
7 days
     EDDP (methadone metabolite)
100
7 days
Methaqualone
     Methaqualone
100
6 days
Opiates
     6-MAM
5
1 day
     Morphine
100
3 days
     Codeine
100
3 days
     Hydrocodone
100
3 days
     Hydromorphone
100
3 days
     Oxycodone
100
3 days
     Oxymorphone
100
3 days
Phencyclidine
     Phencyclidine
25
8 days
Propoxyphene
     Propoxyphene
100
3 days
     Norpropoxyphene
100
10 days

*These are approximate detection times for the drug or metabolites in urine. The actual detection time depends on dose, frequency of use, and individual metabolism.

Note: These tests do not differentiate between dextro (+) amphetamine (dexamphetamine) and racemic mixtures of dextro (+) and levo (-) isomers that are present in “street” amphetamine. These tests do not differentiate between ephedrine and pseudoephedrine.


Key