What percentage of overdoses in 2018 involved prescription opioids?

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Percentage of Overdose Deaths Involving Prescription Opioids in 2018

In 2018, approximately 32% of opioid-involved overdose deaths in the United States involved prescription opioids. 1, 2, 3

Breakdown of 2018 Opioid Overdose Death Statistics

According to the most recent data from the Centers for Disease Control and Prevention:

  • In 2018, there were approximately 67,367 total drug overdose deaths in the United States 3
  • Of these, 46,802 (69.5%) involved opioids 3
  • Prescription opioids were involved in about one-third of these opioid-related deaths 1, 2

Types of Opioids Involved in Fatal Overdoses

The pattern of opioid involvement in overdose deaths can be categorized as follows:

  • 17.4% of opioid overdose decedents tested positive for prescription opioids only 2
  • 58.7% tested positive for illicit opioids only (heroin, illicitly manufactured fentanyl, and fentanyl analogs) 2
  • 18.5% tested positive for both prescription and illicit opioids 2
  • 5.5% of deaths could not be classified by opioid type 2

Trends in Prescription Opioid Overdose Deaths

From 2017 to 2018, there were notable changes in opioid overdose patterns:

  • Deaths involving all opioids decreased by 2% 3
  • Deaths involving prescription opioids specifically decreased by 13.5% 3
  • Deaths involving heroin decreased by 4.1% 3
  • However, deaths involving synthetic opioids (primarily illicitly manufactured fentanyl) increased by 10% 3

Risk Factors and Circumstances Surrounding Overdoses

Several important risk factors were identified in the data:

  • Approximately 10% of overdose decedents had been released from an institutional setting in the month preceding their fatal overdose 2
  • Bystanders were present in approximately 40% of overdose deaths, yet naloxone was rarely administered by laypeople 2
  • 62.6% of all opioid deaths in early 2018 co-occurred with at least one common non-opioid drug (such as benzodiazepines, cocaine, or methamphetamine) 4

Clinical Implications

These findings highlight several important considerations for healthcare providers:

  • The risk of overdose increases substantially with higher opioid dosages, particularly above 50 MME/day 5
  • Concurrent use of benzodiazepines and opioids significantly increases overdose risk, with studies finding evidence of concurrent benzodiazepine use in 31%-61% of opioid overdose decedents 5
  • Methadone has been associated with disproportionate numbers of overdose deaths relative to prescribing frequency, accounting for as much as a third of opioid-related overdose deaths despite representing less than 2% of opioid prescriptions 5

Prevention Strategies

Based on these findings, key prevention strategies include:

  • Prioritizing naloxone distribution to persons using opioids and their family/friends 2
  • Expanding treatment and support for persons who have experienced a non-fatal overdose 2
  • Improving linkage to and engagement in risk-reduction services 4
  • Providing evidence-based treatment for persons with opioid and other substance use disorders, with attention to polysubstance use 4
  • Using Prescription Drug Monitoring Programs (PDMPs) to reduce doctor shopping and overdoses 1

References

Guideline

Opioid Epidemic in the USA

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025

Research

Drug and Opioid-Involved Overdose Deaths - United States, 2017-2018.

MMWR. Morbidity and mortality weekly report, 2020

Guideline

Guideline Directed Topic Overview

Dr.Oracle Medical Advisory Board & Editors, 2025

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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