Though it gives a larger window of time than blood testing, crack cocaine is only detectable in urine for one to four days after it is used. Like other testing methods, the exact amount of times depends on the amount the user has used, the rate the body metabolizes and the frequency of use, among other factors. read more
However, heavy, long-term use will cause the drug to start to accumulate in body tissues, allowing certain tests to detect the drug in the system for an extended period of time. For example, after a single use of cocaine, agents created by the metabolization of the drug can be detected in a person’s urine for 2-4 days. read more
Interestingly, cocaine’s metabolites – or the breakdown products of cocaine – have a longer half-life, ranging from 14.6-52.4 hours. 1 This discovery has suggested that chronic use of cocaine increases the amount of time that cocaine and its metabolites stay in your system. read more