How much time do cocaine stay in your system?

Could be forever : The high lasts anywhere from 15 minutes to 1 hour. It can be detected in biological fluid for about 4 days after last use. Neurophysiological changes ie brain damage and addiction can set it before you know it and stays in your system forever. Stop while your ahead.

Could be eternal : The high lasts anywhere from 15 minutes to one hour. It can be detected in biological fluid for about 4 days after last use. Neurophysiological changes ie brain damage and addiction can set it before you know it and stays in your system forever. Stop while your ahead.

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.