How long will drugs show up on a saliva drug test? You will note below that a saliva drug test can positive drug results in a matter of hours. A urine drug test can show positive results in a matter of days.
|Drug Detection Window*
Saliva Compared To Urine Tests
|Alcohol (an EtG urine test can show use up to 80 hours)||1-12 Hours||6-12 Hours|
|Amphetamines||2-48 Hours||1-4 Days|
|Barbiturates||2-48 Hours||Short acting type:1-4 Days
Long acting type: 3 Weeks or longer
|Benzodiazepines||2-48 Hours||Infrequent user: 1-3 Days Chronic user: 4-6 Weeks|
|Cannabinoids (THC-Marijuana)||1-18 Hours||Infrequent user: 1-10 Days Chronic user: 30 Days or longer|
|Cocaine Metabolite||1-48 Hours||1-4 Days|
|Methadone||1-48 Hours||1-6 Days|
|Methamphetamines||1-48 Hours||1-4 Days|
|MDMA (ecstasy)||1-48 Hours||1-3 Days|
|Nicotine (Tobacco)**||4-6 Hours||Infrequent user: 1-3 Days Chronic user: 7 to 14 Days|
|Opiates (Heroin, Morphine, Codeine)||1-48 Hours||1-3 Days|
|Oxycodone||1-48 Hours||1-3 Days|
|Phencyclidine (PCP)||1-48 Hours||Infrequent user: 1-8 Days Chronic user: 1-28 Days+|
|Propoxyphene||1-48 Hours||1-3 Days|
*There are many factors that affect the actual window of detection (see How Long Do Drugs Stay In Your System - Drug Detection Times for more information). This chart is meant to give relative results for the majority of cases. There are always situations that affect the actual drug test window.
**Nicotine is metabolized as Cotinine and can be detected on a Cotinine Urine Test.