DRUGS OF ABUSE - BODY RETENTION TIMES ON URINE DRUG TESTS

DRUG RETENTION TIME
Alcohol/Ethanol (Blood/Breath)
(see alcohol chart for peak values)
(metabolized at the rate of 2/3 drink per hour)

Amphetamines 2-3 Days

Benzodiazepines
(Valium, Librium, etc.)
1-2 Weeks

Barbiturates
          Long Acting (e.g. phenobarbital) 1-3 Weeks
          Short Acting (e.g. secobarbital) 2-3 Days

Cocaine
(Crack)
2-3 days

Marijuana (THC) (times are only approximations)
          Infrequent smoker 4 5 days
          moderate smoker days-weeks
          chronic smoker weeks

Opiates
(Codeine, Morphine, Heroin
Dilaudid, Percocet, Demerol)
2-3 days

Phencyclidine 1-7 days

(PCP, Angel Dust)
(chronic use may be up to 30 days)
These are only approximations for detection periods on a urine drug test.
Drug detection depends on amount of drug ingested, time since use, rate of an individual's metabolism, and amount of fluid intake. Because of these variables, times presented are only a general guideline.
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