How Long Does Cocaine Stay in Your System?

Detection Timetable Depends on Many Variables

Crack Cocaine
Crack Cocaine rocks. DEA

Determining exactly how long cocaine is detectable in the body depends on many variables, including which kind drug test is being used. Cocaine - also known as Coke, Crack, Flake, Rocks, Snow - can be detected for only 24 hours with some tests, but can be "visible" for up to three months in other tests.

The timetable for detecting cocaine in the system is also dependant upon each individual's metabolism, body mass, age, hydration level, physical activity, health conditions and other factors, making it almost impossible to determine an exact time cocaine will show up on a drug test.

The following is an estimated range of times, or detection windows, during which cocaine can be detected by various testing methods:

How Long Does Cocaine Show Up in Urine?

Cocaine is detectable in a urine test for 2-30 days.

How Long Does Cocaine Stay in the Blood?

A blood test will detect cocaine for up to 24 hours.

How Long Will Cocaine Show Up in a Saliva Test?

A saliva test will detect cocaine from 1-10 days.

How Long Does Cocaine Remain in Hair?

Cocaine, like like many other drugs, can be detected with a hair follicle drug test for up to 90 days.

Cocaine Metabolites Can Linger

Cocaine itself is metabolized in the body so rapidly that it is not detectable in most screening tests. Those test actually screen for benzoylecgonine, a metabolite of cocaine.

There are several factors that can cause benzoylecgonine to be detectable in the system for much longer than other drugs, like heroin, for example.

Factors Affecting Excretion of Cocaine

Factors that can cause cocaine metabolites to linger in the system can include the amount of the drug that has been used. The more cocaine you use per session, the longer that it can be detected, according to some studies.

Other factors that can cause benzoylecgonine to linger include:

  • Drinking alcohol. Alcohol can "bind" cocaine and impede its excretion.
  • Being overweight. Benzoylecgonine can be stored in fatty tissue.
  • Being inactive. Cocaine is excreted faster in active people with a better metabolism rate.
  • Not drinking water. Water can speed up the excretion of cocaine metabolites.
  • Too much caffeine. Caffiene can also impede the excretion of cocaine.


Always Test Clean. "What Are Drug Detection Times?" Drug Test Facts Accessed June 2015

American Association for Clinical Chemistry "Drugs of Abuse Testing." Lab Tests Online. Revised 2 January 2013.

LabCorp, Inc. "Drugs of Abuse Reference Guide." Accessed March 2013.

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