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DRUG DETECTION TIMES

The following table can be used as a guide for drug detection times (urine); it cannot be presumed to be absolute due to individual differences in the metabolism and excretion of drugs and their metabolites.

DRUG	INFREQUENT USER	FREQUENT USER	CHRONIC USER*
Ethanol (alcohol)	4-10 hours	4-12 hours	4-12 hours
THC (Marijuana)	2-5 days	4-14 days	up to 2-3 mo.
Phencyclidine (PCP)	1-3 days	3-7 days	up to a month
Benzodiazepine (Valium)	2-5 days	4-14 days	up to a month
Chlordiazepoxied (Librium)	2-5 days	4-14 days	up to a month
Methaqualone (Qualudes)	2-4 days	3-8 days	several weeks
Amphetamines (Speed)	1-3 days	2-6 days	several weeks
Phenobarbita (Barbituates)	4-8 days	5-15 days	a month or more
Secobarbital (Barbituates)	2-4 days	4-8 days	several weeks
Cocaine (as benzoylecogoine)	12-48 hours	1-4 days	up to several weeks
Codeine	1-3 days	2-5 days	up to several weeks
Morphine	12-48 hours	2-6 days	up to several weeks
Methadone	1-4 days	2-10 days	up to several weeks
Meperidine (Demerol)	6-14 hours	1-3 days	up to a week
Propoxyphene (Darvocet)	1-3 days	2-5 days	up to several weeks

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