How long can drug be detected in urine and saliva drug test?
The following chart gives approximate detection periods for each substance by drug test type. The ranges depend on amount and frequency of use, metabolic rate, body mass, age, overall health, drug tolerance, and urine pH.
| Drug | Cut-Off Level | Approximate Detection Time in Urine | Approximate Detection Time in Saliva |
| Amphetamine (AMP) | 1,000 ng/ml | 2 – 4 Days | 1 – 3 Days |
| Barbiturates (BAR) | 300 ng/ml | 4 – 7 Days | – |
| Benzodiazepines (BZO) | 300 ng/ml | 3 -7 Days | – |
| Cocaine (COC) | 300 mg/ml | 2 – 4 Days | 1 – 3 Days |
| Ecstasy (MDMA) | 500 ng/ml | 1 – 3 Days | – |
| Methadone (MTD) | 300ng/ml | 3 – 5 Days | – |
| Methamphetamine (MET) | 1,000 ng/ml | 3 – 5 Days | 1 – 3 Days |
| Opiates (MOR) | 300 ng/ml | 2 – 4 Days | – |
| Opiates (OPI) | 2,000 ng/ml | 2 – 4 Days | 1 – 3 Days |
| Phencyclidine (PCP) | 25 ng/ml | 7 – 14 Days | 1 – 3 Days |
| Marijuana (THC) | 50 ng/ml | 15 – 30 days | 6 – 12 Hours |
| Tri-Cyclic Antidepressants (TCA) | 1,000 ng/ml | 7 – 10 Days | – |
| Propxyphene (PPX) | 300 ng/ml | 1 – 2 Days | – |
| Oxycodone (OXY) | 100 ng/ml | 2 – 4 Days | – |
| Amphetamine (AMP300) | 300ng/ml | 2 – 4 Days | – |
| Cocaine (COC150) | 150 ng.ml | 2 – 4 Days | – |
| Methamphetamine (MET500) | 500 ng.ml | 3 – 5 Days | – |
Drug Testing with on-site urine or saliva drug test products provides a preliminary drug test result and should be confirmed using a laboratory to confirm non-negative drug test results. All non-negative onsite drug test results should be confirmed thru a certified laboratory.
We offer Lab confirmation and MRO service for our clients using our instant drug test products. A Lab confirmation account can be set up for your company. Please contact our customer service department toll free 1-866-323-7336.
