Why Overdose Risk Is Higher After Jail or Prison Release and How to Prevent It

For people living with opioid addiction, the days following release from jail or prison are among the most dangerous they will face.

Research shows that overdose risk spikes dramatically during this period.

Research shows that mortality rates during the first weeks after release can be 10 to 40 times higher than those in the general population, highlighting the urgent need for treatment and overdose prevention during reentry.

Understanding why this happens, and how to prevent it, is critical to saving lives.

Why is overdose risk higher after jail or prison release?

During incarceration, most people with opioid use disorder stop using opioids, either voluntarily or because access to drugs is limited.

While that may sound positive, it creates a serious medical risk.

“When opioid use stops, tolerance declines quickly, often within days or weeks,” explains Frank Chilli, a medical provider with BrightView Health.

That means the body can no longer handle the same amount of opioids it once could.

“If someone returns to opioid use at the same dose they previously used, the risk of overdose becomes significantly higher.”

For individuals leaving incarceration without treatment, the consequences can be deadly.

Preventing these tragedies starts long before someone walks out of jail. Effective reentry planning, including access to addiction treatment and recovery support, plays a critical role in reducing overdose risk after release.

(You can read more about the importance of reentry planning in our article, Why Addiction Treatment Must Be Part of Reentry Planning.)

How Fentanyl Changed the Risk

The modern drug supply has made this problem even more dangerous.

Fentanyl, a synthetic opioid now widely present in illicit drugs, is 50 to 100 times more potent than morphine.

Because fentanyl acts rapidly in the brain and suppresses breathing quickly, even small amounts can cause fatal overdoses.

For individuals whose tolerance has declined during incarceration, the risk is especially severe.

“In an environment where fentanyl is widely present,” Chilli explains, “people with reduced tolerance face a much greater risk of fatal overdose.”

The Myth of “Detox Through Incarceration”

Many people assume that incarceration alone resets addiction.

But addiction is a chronic medical condition that involves long-term changes in the brain.

“While tolerance may decrease and withdrawal may occur during incarceration,” Chilli says, “recovery requires ongoing treatment and support.”

Without treatment, the underlying disease remains. When people return to the same environments and stressors that contributed to their addiction, relapse becomes common.

Preventing Overdose After Release

• Start medication for addiction treatment (MAT)
  Medications like buprenorphine or methadone help reduce cravings and protect against overdose, especially during early recovery.
• Use naloxone (Narcan) and carry it at all times
  Naloxone can reverse an opioid overdose within minutes. Friends, family members, and community partners should also have access and know how to use it.
• Avoid using alone
  If relapse occurs, using alone significantly increases the risk of death. Having someone nearby can make the difference in an emergency.
• Test substances when possible
  Fentanyl is now found in many drugs, even those not typically associated with opioids. Test strips can help identify dangerous substances.
• Connect to care immediately after release
  The first few days matter most. Access to outpatient treatment, counseling, and case management can help stabilize individuals during this high-risk period.

The Role of Families and Communities

Families also play an important role in preventing overdose after release.

Understanding the risks can help loved ones respond quickly and support recovery. Families should learn to recognize the signs of overdose and know how to administer naloxone.

They can also encourage continued treatment and help reduce stress during the transition back into the community.

A Safer Path Forward

Reentry is often seen as the end of incarceration. But for people struggling with addiction, it is really the beginning of a new and vulnerable phase.

By connecting individuals to treatment, providing overdose prevention tools, and strengthening community partnerships, we can dramatically reduce overdose deaths.

Recovery doesn’t begin with punishment. It begins with access to care.