Controlled substances include both prescription drugs and illicit drugs with no recognized medical value.

• A. Only illicit drugs
• B. False
• C. Only prescription drugs
• D. True

Answer: (D)

Understanding what makes a substance a controlled substance helps here. The federal system regulates substances based on potential for abuse and medical value. This includes prescription medications that are controlled because they can be misused, as well as illicit drugs that do not have accepted medical use. The idea is that control is about abuse risk and safety, not simply whether a substance is legal to prescribe or whether it’s illegal to possess.

So the statement is true: controlled substances encompass both prescription drugs that are controlled due to abuse potential and illicit drugs that generally have no recognized medical value. It’s worth noting that not every prescription drug is a controlled substance, and the specifics depend on the drug’s scheduling and approved medical uses.