Drug test detection table

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Approximate values for detection periods
Substance
Urine
Hair
Blood
Alcohol
3–5 days via ethyl gluconoride (EtG) metabolite or 10–12 hours via traditional method
lifetime of hair
12 hours
Amphetamines (except meth)
1 to 2 days
up to 90 days
12 hours
Methamphetamine
2 to 4 days
up to 90 days
24 hours
Barbiturates (except phenobarbital)
2 to 3 days
up to 90 days
1 to 2 days
Phenobarbital
7 to 14 days
up to 90 days
4 to 7 days
Benzodiazepines
Therapeutic use: 3 days. Chronic use (over one year): 4 to 6 weeks
up to 90 days
6 to 48 hours
Cannabis
Light use: 2-7 days
Prolonged use: 1-3 months
Up to 90 days
12 hours
Cocaine
2 to 4 days with exceptions for certain kidney disorders
up to 90 days
24 hours
Codeine
1 day
up to 30 days
12 hours
Cotinine (a break-down product of nicotine)
2 to 4 days
up to 90 days
2 to 4 days
Morphine
2 days
up to 90 days
6 hours
Heroin
2 days (single use) 2-5 (chronic)
up to 90 days
6 hours
LSD
2 to 24 hours
up to 3 days
0 to 3 hours
Methadone
3 days
up to 30 days
24 hours
PCP
14 days; up to 30 days in chronic