Which describes the three waves of the opioid epidemic?

• A. The opioid crisis occurred in a single phase
• B. There are four waves of the opioid epidemic
• C. The opioid epidemic is not described by waves
• D. Three waves of the opioid epidemic

Answer: (D)

Waves provide a chronological way to understand how the opioid harms have evolved. The first wave centers on prescription opioid misuse—people were prescribed pills in large numbers, leading to rising addiction and overdose. The second wave shows a shift to heroin as those who became dependent on prescription opioids found heroin more accessible or affordable. The third wave highlights the surge of illicit synthetic opioids, especially fentanyl, which are far more potent and have driven a sharp increase in overdose deaths, often because they’re mixed with other drugs or sold as counterfeit pills. This three-wave framework captures the major shifts in substances driving the epidemic and the changing challenges for prevention, treatment, and law enforcement. Some sources describe four waves by treating synthetic opioids as a separate phase, but the three-wave framing is a common, concise way to summarize the main eras.