|Drug Name||Urine Detection
|All detection window timeframes are approximate.|
|Amphetamine||1-5 days||1-3 days|
|Barbiturates||1-7 days||1-3 days|
|Benzodiazepine||1-10 days||1-3 days|
|Buprenorphine||1-10 days||1-3 days|
|Cocaine||1-5 days||1-3 days|
|EDDP||1-3 days||1-3 days|
|Fentanyl||1-2 days||1-2 days|
|Hydrocodone||1-6 days||1-2 days|
|Hydromorphone||1-3 days||1-2 days|
|K2 Spice||1-3 days||1-2 days|
|Ketamine||1-3 days||1-2 days|
|LSD||1-5 days||1-5 days|
|Marijuana - THC||1-30 days||1-2 days|
|MDMA - Ecstasy||1-5 days||1-3 days|
|Methadone||1-12 days||1-7 days|
|Methamphetamine||1-5 days||1-3 days|
|Opiates||1-5 days||1-2 days|
|Oxycodone||1-5 days||1-2 days|
|Phencyclidine PCP||1-7 days||1-3 days|
|Propoxyphene PPX||1-10 days||1-5 days|
|Tricyclic Anti-Depressants||1-7 days||1-5 days|
There are too many factors that can affect how long a drug stays detectable and these timeframes are only guidelines for the length of time after using a drug that a particular testing method will indicatte a positive result. The above detection timeframes have been developed by the scientific community to help identify a approximate time frame as to how long the drug stays in the system.
Drug testing normally involves establishing the concentration of a drug above a certain level rather than just detecitng the presence of the drug. A “cut-off” is the lower detectable limit of the amount of a drug present in a specimen.
Cut-offs are set for a number of reasons:
- Exclude defenses based upon passive inhalation or environmental exposure.
- Will not detect low dosage use of over-the-counter medications; e.g. Codeine.
- Standardization of laboratory testing.
- To ensure that testing is being performed at the same level within an industry; e.g. workplace testing.