Drug Detection Time for Urine Drug
Testing
The following chart includes drugs of abuse our lab regularly screens for clients.
Detection Time is the number of days after intake of a drug that an individual would be
expected to excrete detectable levels of drug metabolite in urine. Variances in these time
limits due to such factors as dosage, frequency of use, liquid consumption, and individual
metabolic characteristics are to be expected. The detection times below allow for these
variances and are based on current literature and procedures used in our lab.
DRUG/FAMILIES |
TRADE NAMES |
APPROXIMATE DETECTION TIME IN DAYS* |
Average |
Possible |
| Alcohol (Ethanol) |
-- |
0-1 |
-- |
| Amphetamine |
Amphetamine
|
Dexedrine® |
1-2 |
3 |
Methamphetamine ("Crystal Meth")
|
Desoxyn® |
1-2 |
3 |
| Antabuse |
-- |
1-3 |
-- |
| Barbiturates: |
Secobarbital
Pentobarbital
Butalbital
|
Seconal®
Nembutal®
Fiorinal® |
1-2 |
3 |
Phenobarbital
|
Luminal®, Donnatal® |
1-7 |
14-21 |
| Benzodiazepines |
Valium®, Ativan®, Dalmane®, Librium®, Xanax®, Serax® |
1-9 |
21 |
| Clonazepam |
Klonopin® |
1-3 |
-- |
| Clonidine |
Catapres® |
2-3 |
-- |
| Cocaine |
-- |
2-4 |
7-9 |
| Ethchlorvynol |
Placidyl® |
1-3 |
5 |
| Fentanyl |
-- |
1-3 |
-- |
| Glutethimide |
Doriden® |
1-3 |
-- |
| Hydroxyzine |
Vistaril®, Atarax® |
1-3 |
-- |
| LSD |
-- |
1-3 |
-- |
| Marijuana (Cannabinoids) |
Marinol® |
| 100 ng screen |
-- |
0-22 |
45 |
| 50 ng screen |
-- |
0-30 |
60 |
| 20 ng screen |
-- |
3-46 |
77 |
| MDMA/MDA (Ecstasy) |
-- |
3-5 |
-- |
| Meperidine |
Demerol® |
1-3 |
-- |
| Meprobamate |
Equanil®, Equagesic® |
1-3 |
-- |
| Methadone |
Dolophine® |
1-2 |
3 |
| Methaqualone |
Quaalude® |
1-5 |
14 |
| Naltrexone |
-- |
2-3 |
-- |
| Opiates |
Morphine, Codeine, Dilaudid®, Percodan®, Tylox® |
1-2 |
3 |
| PCP (Phencyclidine) |
-- |
1-14 |
30 |
| Pentazocine |
Talwin® |
1-3 |
-- |
| Phenmetrazine |
Preludin® |
1-3 |
-- |
| Phenothiazines |
Thorazine®, Phenergan®, Mellaril® |
1-4 |
-- |
| Propoxyphene |
Darvon®, Darvocet® |
1-2 |
-- |
| Prozac |
-- |
2-3 |
-- |
| Psilocybin (mushrooms) |
-- |
1-2 |
-- |
| Quinine |
-- |
1-3 |
5 |
| Ritalin |
-- |
2-3 |
-- |
| Tricyclic Antidepressant |
Elavil®, Sinequan®, Tofranil®, Pamelor® |
1-4 |
9 |
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