Cocaine is a powerfully addictive stimulant drug made from the leaves of the coca plant native to South America. Although health care providers can use it for valid medical purposes, such as local anesthesia for some Surgeries is an illegal drug. As a street drug, cocaine looks like a fine, white, crystal powder. Street dealers often mix it with things like cornstarch, talcum powder, or flour to increase profits. They may also mix it with other drugs such as the stimulant amphetamine.
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How do people use cocaine?
People snort powder through the nose, or they rub it into their gums. Others dissolve the powder in water and inject it into the bloodstream. Some people inject a combination of and heroin, called a Speedball.
Another popular method of use is to smoke cocaine that has been processed to make a rock crystal (also called "freebase cocaine"). The crystal is heated to produce vapors that are inhaled into the lungs. This form is called Crack, which refers to the crackling sound of the rock as it's heated.
People who use often take it in binges—taking the drug repeatedly within a short time, at increasingly higher doses—to maintain their high.
How does cocaine affect the brain?
increases levels of the natural chemical messenger dopamine in brain circuits controlling pleasure and movement.
Normally, the brain releases dopamine in these circuits in response to potential rewards, like the smell of good food. It then recycles back into the cell that released it, shutting off the signal between nerve cells. prevents dopamine from recycling, causing excessive amounts to build up between nerve cells. This flood of dopamine ultimately disrupts normal brain communication and causes high.
People snort cocaine powder through the nose, or they rub it into their gums. Others dissolve the powder in water and inject it into the bloodstream. Some people inject a combination of cocaine and heroin, called a Speedball.