Medication-Assisted Treatment (MAT)

MAT helps the brain heal from opioid dependence

When someone uses opioids regularly, their brain gets used to the drug and starts to depend on it to feel normal.

MAT uses safe, prescribed medications to:

  • Relieve cravings and withdrawal
  • Stabilize brain chemistry
  • Allow people to focus on recovery, not survival

The Medications:
Full vs Partial Agonists

What’s an agonist?

Opioids attach to receptors in the brain that control pain and feelings of reward. Different MAT medications interact with those receptors in three different ways:

  • Fully activate the opioid receptors.
  • Prevent withdrawal and cravings.
  • Taken in controlled doses.
  • Activate the receptors just enough to stop cravings and withdrawal.
  • Has a “ceiling effect” – taking more won’t increase the effect or cause a stronger high. This makes it safer and harder to misuse.
  • Block opioid receptors completely.
  • Prevent opioids from having any effect if used.

The Medications:
Full vs Partial Agonists

Graphic showing empty opiod receptor in brain. Methadone is a full agonist: generates effect. Buprenorphine is a partial agonist: generates limited effect. Naltrexone is an antagonist: blocks effect.

People who take medicines like methadone or buprenorphine are far less likely to die from overdose than those who try to quit “cold turkey.” These medicines keep withdrawal and cravings under control, which means fewer relapses, fewer overdoses, and a better chance at long-term recovery.

A study shows that patients on MAT remained in treatment nearly 3x longer (438.5 days) than those in abstinence-only programs (174 days). MAT programs also show higher success rates, with 60% or more of patients staying engaged in care and experiencing fewer overdoses and relapses.

MAT stabilizes brain chemistry and reduces cravings and withdrawal symptoms, so people can focus on rebuilding their lives, not just fighting urges.

No – these medicines treat the brain and help the brain heal from dependency and a lack of natural dopamine production, caused by continued use of opioids (flooding the brain with “fake” dopamine). They stabilize brain chemistry that’s been changed by opioid use, so
people can focus on healing, working, and rebuilding relationships. Research shows MAT reduces overdose deaths and helps people stay in recovery. (Source: National Institute on Drug Abuse, 2024)

Yes! Prescribed and monitored by a healthcare provider, MAT is safe and effective. These medicines are approved by the FDA and recommended by the CDC, SAMHSA, and NIH. Side effects (like mild nausea or fatigue) can occur at first, but most fade as the body adjusts. The benefits (lower overdose risk, better treatment retention, and improved quality of life) can far outweigh the risks. (Sources: CDC, Medications for OUD, 2023. SAMHSA, MAT Overview, 2024)