How much time does cocaine stay in your system ?

2-3 days: Depending on how sensitive a test they are using, how long between your use and the test and how much you used, it would be unusual for it be found more than 3 days afterwards, and virtually never more than 5 days later. Again, usually 2-3 days. There is a metabolite of cocaine, cocaethylene, which can last longer and occurs when people drink while using Cocaine but wouldn't be more than 5 days.