When the Controlled Substances Act (CSA) passed almost 50 years ago, it created a classification system, known as drug schedules, that prescribe how the federal government views and responds to specific drug compounds. Under this system, those listed on Schedule I are generally perceived as unsafe, having a high potential for abuse, and having no accepted medical use.

Heroin, LSD, and Ecstasy are all on the CSA’s Schedule I – as is cannabis.

The matrix descends according to a decreasing abuse potential and increasing medical use, meaning that at the Schedule V level, included drugs are standard over-the-counter medications, “generally used for antidiarrheal, antitussive, and analgesic purposes,” according to the United States Drug Enforcement Administration.

– Read the entire article at Forbes.