DETECTION PERIODS
SUBSTANCE URINE HAIR
Alcohol 6-12 hrs n/a
Amphetamines 4-5 days up to 90 days
Barbiturates 2-12 days n/a
Benzodiazepines 1-42 days n/a
Cannabis (single use) 24-72 hrs up to 90 days
Cannabis (habitual use)up to 12 weeks
Cocaine 4-5 days up to 90 days
Codeine/Morphine 2-4 days up to 90 days
Heroin 8 hrs up to 90 days
PCP 2-10 days up to 90 days