A wjclosson Website - Drug Detection Times

Drug Detection Times

Drug	Urine	Blood	Oral Fluid	Hair
Amphetamines	2-4 days		2-3 days	*
Barbiturates	2-4 days (S) 2 Weeks (L)		2-3 days	*
Cocaine	2-4 Days		2-3 days	*
Marijuana	2-5 days (occ) 4 weeks (chronic)		72 hrs	*
Methadone	2-4 days		2-3 days	*
Opiates	2-4 days		2-3 days	*
PCP	2-5 days		2-3 days	*
Propoxyphene	2-4 days		N/A	*
Ethanol	up to 12 hrs	up to 8 hrs	up to 8 hrs	N/A

(S) short acting barbiturates

(L) long acting barbiturates

(occ) occasional usage

* depends on hair length; each inch represents a 1 month historical record

all times are approximate and depend on multiple factors