Cocaine comes from the leaves of the coca plant, primarily grown in South America in countries like Colombia, Peru, and Bolivia. The coca leaves are harvested and processed with chemicals to extract and refine cocaine into the powdered form known as cocaine. Colombia is the largest producer, with significant cultivation along the Andes mountains and jungle regions. The coca plant has been used historically for thousands of years by indigenous peoples for its stimulant effects before becoming the source for the modern drug cocaine through chemical extraction and processing.