Cocaine is highly addictive and those who smoke cocaine appear to develop an addiction to the drug more rapidly that those who snort it. However, even those who snort cocaine can find themselves addicted.
Cocaine acts on these neurons in the reward pathway. After cocaine increases the release of dopamine, the increased level of dopamine then gives the drug abusers the rush or high that will make them enjoy for a short time. Even though the feelings of pleasure only lasts for a short time, the drug can cause changes in the brain that would last for a very long time; in some cases it can be permanent.
One of the changes that arises when a person takes Cocaine is the development of cravings. If a person takes Cocaine and then stops taking it, he or she will soon crave the drug. In other words, the individual will have a strong desire to take more of the drug. Cocaine exerts such a strong effect that even the mention of it may stimulate cravings in Cocaine addicts. Figuring out why addicts are so prone to relapse is a major area of research. One culprit is the powerful craving for drugs that can linger months or even years after an addict quits using them. Scientists have recently discovered evidence that this craving, partly a physiological phenomenon, is related to the long-term changes in brain function that addiction causes. Now geared towards functioning in the presence of drugs, the addicted brain, in essence, has become unable to function properly in their absence.
if we take large amount cocaine .it make our body dead.