Cocaine is one of the most addictive drugs in the world. It is a popular party drug used by a wide number of American youth and celebrities. The cocaine users feel a euphoric high accompanied by increased energy levels, improved conversational wit and socializing skills. The drug produces its effects by stimulating the production of a neurotransmitter ‘dopamine’ associated with the feelings of pleasure and happiness. Apart from these desired effects, the drug produces a number of side effects such as agitation, dissociation, anxiety, increased blood pressure, elevated body temperature and drug induced psychosis. The drug causes long term damage to health and once the addiction has been developed, it is difficult to get rid of it without a proper treatment program. The drug tends to stay in the system for a number of days after the last use and the user may test positive for it even after not having used it for days. So, it becomes really important to know as to how long does Cocaine stays in your body or system for a perfect understanding.