https://www.drugabuse.gov/publications/drugfacts/cocaineCocaine is a powerfully addictive stimulant drug made from the leaves of the coca plant native to South America.
https://www.drugabuse.gov/research/clinical-research/searchIf you regularly use tobacco or other drugs, such as alcohol, pain pills, cocaine, or marijuana, you may be able to participate in a clinical trial. Clinical trials are research studies with people. They help scientists understand how drug use affects the
