A cocaine drug test times depend on many factors - drug quality, frequency of cocaine use, metabolic rate, body mass, age, overall health, and cocaine drug test procedures.

• Oral fluid or saliva drug testing results for the most part mimic that of blood. The only exceptions are THC and benzodiazepines. Oral fluid will likely detect THC from ingestion up to a maximum period of 18–24 hours. Low saliva:plasma ratio continues to cause difficulty in oral fluid detection of benzodiazepines
• Cocaine drug testing cannot detect current drug use. It takes approximately 6–8 hours or more post-consumption for drug to be metabolized and excreted in urine. Similarly, hair drug testing requires two weeks, and sweat, seven days.

Cocaine drug tests look for the metabolites rather the the actual drug, mainly due to the longer detection times. So if you use on Friday, Saturday, the cocaine is GONE from your system. Monday, you are given a surprise cocaine drug test and you fail. The effects are long gone, but since the cocaine drug test looks for benzoylecgonine and NOT the cocaine, cocaine testing will show positive.

Cocaine is an alkaloid extracted from Erytrhroxylon coca, a shrub that grows wild in the Andes (Peru and Bolivia), at an altitude of between 700 and 1700 meters in mild and humid climates. Plants that grow naturally reach an altitude of between 3 and 4 meters while the specimens grown only reach 1 to 1.5 meters.

The main varieties are cultivated Erythroxylum coca, known as coca in Bolivia, is the most widely grown and the most content in cocaine. novogratense variety coca, coca Trujillo, and E. sprunceatum variety coca, coca known as Java.

Pharmacological effects
Local anesthetic action by decreasing the excitability of nerve cells. Administered intravenously is a potent stimulator of the central nervous system, producing euphoria, intellectual stimulation can potentially produce seizures.

After the stimulation phase comes a depressive phase, which may be respiratory depression to paralysis of respiratory centers of the nervous system central.-chewing of the leaves: Overrides hunger and fatigue, increases muscular and intellectual performance. Cocaísmo: chewing leaves mixed with ashes, to facilitate the extraction of coca activos. Esnifar principles: It is consumed as hydrochloride subcutaneously or by inhalation. When you inhale the effect appears very quickly, and immediately after the depressive phase comes as the individual needs to consume more.

Chronic poisoning produces headache, hypertension, mydriasis, nausea, rapid breathing, can produce convulsions and paralysis of the respiratory center.
Cocaine addiction:
consumption purposes euphoric stimulant. Psychological dependence occurs, some degree of tolerance, ie increasingly higher doses are needed and frequent to achieve the same euphoric effect.

Chronic use leads to mental disorders with personality disorders and physical abnormalities. Injuries are frequent nose from chronic cocaine use.
Crack Cocaine base is purified, extracted with solvents such as petrol, smokes a pipe or mixed with snuff. The effects appear within seconds, lasts from 5 to 7 minutes as intravenous doses, and requires the individual to continue consuming it.

Cause death. On the peripheral nervous system parasympathomimetic indirect effects, causing vasoconstriction.