Drug Ingestion and the Periods of Detect-Ability


Biological breakdown product of the parent drug after being ingested and metabolized by the human body.

EMIT - Enzyme Multiplied Immunoassay Technique - The first test that a Certified Forensic Lab completes to detect traces of the 8 drugs (listed below) to determine if they are present in the urine sample..

GC/MS - If a trace of any of the 8 drugs are found in the specimen sample, or if a chemical compound appears to be the same as one of these drugs, then Gas Chromatography/Mass Spectrometry is utilized - this is the scientific testing process wherein molecules of the suspected drug are compared with the sample of actual molecules of the drug.  If the two molecules do not match the test is negative - if they do match the test is positive.

Drug - Also Commonly Known As Usual Period of Time a Drug Can Stay in the System The Maximum Amount of Time a Drug Can Stay in the System of a Habitual User*

Amphetamines - Speed

2 - 5 Days


Barbiturates - Downers

2 - 5 Days Same

Benzodiazepines - Tranquilizers, Valium, Librium

2 - 5 Days Same

Benzoylecgonine - Cocaine, Crack

2 - 3 Days Same

Cannabinoids - Marijuana, Hashish, THC

2 - 10 Days     2 - 60 +

Methamphetamines - Speed, Crystal Meth, Methedrine

2 - 5 Days Same

Opiates - Opium, Heroin, Morphine, Codeine

2 - 3 Days Same

Phencyclidine - PCP, Angel Dust

2 - 10 Days Same
* Habitual use is chronic repetitive use.

Note:   The above time periods are average durations and do not apply to all individuals. Variables such as frequency of ingestion, purity/strength of drug ingested, the individual's metabolism, and physical condition are a few of the many important factors.