How long does cocaine stay in your system?

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Cocaine, a crystalline tropane alkaloid, will stay in your system in some form for roughly forty-eight hours, depending on the method of administration. However, the size and method of administering the dosage will have an effect on how long it takes for the cocaine to metabolize and leave your system. Cocaine stimulates the nervous system and reduces appetite, caused by blocking dopamine from entering the system, thereby generating a synapse burst in the brain that induces a euphoric high. If chewed or eaten, often in the form of coca leaves, it will take about 30 minutes to enter the blood stream, while snorting will produce maximum effects within 20 minutes, which are then sustained for roughly 60 minutes. Injecting cocaine directly into the veins will cause the fastest high, at an average of 3.1 minutes, but has the highest health risks. Chronic usage of cocaine in any form will lead to DAT upregulation in the brain, which then causes depression. Abuse may also lead to fatigue, increased appetite and agitation, among other symptoms.