Final answer:
Controlled substances are drugs regulated by the government based on their potential for harm and addiction. They are categorized into different schedules according to their abuse potential.
Explanation:
Controlled substances are drugs that are regulated by the government due to their potential for harm, addiction, and misuse. These substances are classified into different schedules, ranging from Schedule I (highest potential for abuse) to Schedule V (lowest potential for abuse).
Examples of controlled substances include heroin (Schedule I) and Lyrica (Schedule V). The Controlled Substances Act oversees the categorization and regulation of these drugs, with over 400 chemicals currently listed.
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