What Is Opioid Use Disorder (OUD)? Signs, Diagnosis and Treatment
Medically reviewed by Dr Sergio Huerta, MD on September 17, 2026.
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Opioid use disorder (OUD) is a medical condition that changes the way your brain and body respond to opioids over time. It’s common, it’s treatable, and it isn’t a matter of willpower. If opioids have become hard to control, treatment can ease withdrawal, reduce cravings, and help you rebuild a steady daily routine. At BAART Programs, you’ll get care that meets you exactly where you are.
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What Is Opioid Use Disorder?
Opioid use disorder develops when your body becomes dependent on opioids, to the point that stopping brings on real physical or emotional distress. Over time, opioids reshape how your brain handles pain, stress, and reward. A lot of people ask, “is opioid use disorder a disease?” The changes involved are real and measurable, which is exactly why OUD is treated as a medical condition rather than a personal failing.
Opioids include:
- Fentanyl and other synthetic opioids
- Heroin
- Oxycodone and hydrocodone
- Morphine, codeine, and tramadol
Common opioid use disorder symptoms, including the signs people often associate with it, can include:
- Strong cravings or urges to use opioids
- Withdrawal symptoms once opioids wear off
- Using more than you meant to
- Trouble keeping up with work, school, or daily life
- Continuing to use despite health problems
- Difficulty stopping without support
How Opioid Use Disorder Is Diagnosed
OUD is diagnosed by a clinician, never by a questionnaire or self-assessment alone. Providers work from eleven criteria laid out in the American Psychiatric Association’s DSM-5-TR. These DSM-5 opioid use disorder criteria support a diagnosis when two or more are present within a twelve-month period.
The eleven criteria cover:
- Taking opioids in larger amounts, or for longer, than intended
- Wanting to cut down or stop and finding you can’t
- Spending a lot of time getting opioids, using them, or recovering afterward
- Cravings or strong urges to use
- Opioid use interfering with responsibilities at work, school, or home
- Continuing to use even when it’s straining relationships with people around you
- Giving up activities you used to care about
- Using in situations that carry real physical risk
- Continuing despite a physical or mental health problem that opioids are making worse
- Tolerance, meaning it takes more to get the same effect
- Withdrawal once opioids wear off
Clinicians describe OUD as mild when two or three criteria are met, moderate at four or five, and severe at six or more. There’s one important exception: if you take opioids exactly as prescribed under medical supervision, tolerance and withdrawal on their own don’t point to opioid use disorder.
You don’t need to check every box on this list to benefit from treatment, and you don’t need a diagnosis before you call us. An assessment happens as part of your first visit.
Start Recovery From Opioid Addiction Now
Medication-assisted treatment (MAT) can set you on the path to positive change. Our medical providers work with you to choose the right medication and dose, adjusting your plan as needed to support your progress.
Don’t hesitate to contact your treatment center today with any questions about MAT and begin your path to recovery. We’re here to help you every step of the way.
Opioid Use Disorder and Overdose Risk
Anyone using opioids outside of medical supervision today is facing a very different level of risk than someone would have ten years ago. Fentanyl has become widespread in the illicit drug supply, turning up in pills sold as oxycodone or Xanax and in powders sold as heroin or cocaine. It’s far more potent than heroin, and there’s no reliable way to tell by sight, taste, or smell whether something contains it.
Two other patterns raise the risk further:
- Polysubstance use. Mixing opioids with benzodiazepines, alcohol, or stimulants makes an overdose more likely and harder to reverse.
- Losing tolerance. After any break in use (a hospital stay, time in custody, detox, or even just a few days without opioids) tolerance drops. Going back to a previous dose after that kind of break is one of the highest-risk moments there is.
This is exactly where treatment makes the biggest difference. Research from the Centers for Disease Control and Prevention and the National Institute on Drug Abuse consistently links staying in medication-assisted treatment with substantially lower rates of overdose death compared with no treatment at all. Treatment can’t remove risk entirely, but staying in care remains one of the most protective steps available.
Keeping naloxone on hand is a sensible precaution for anyone using opioids, and for the people close to them. Our naloxone guide for families walks through how to recognize an overdose and what to do next.
How Opioid Use Disorder Is Treated
The most effective treatment for OUD pairs medication with counseling. This combined approach is known as medication-assisted treatment (MAT), or medication for opioid use disorder (MOUD).
With MAT, you’ll receive:
- Medication that eases withdrawal and reduces cravings
- Counseling to support behavior change and coping skills
- Ongoing monitoring, with your plan adjusted as your needs change
Medication alone and counseling alone both tend to work less well than the two combined. Medication settles the physical side of things so the rest of recovery becomes possible, and counseling gives you a place to do that work. There’s no fixed end date; some people stay in treatment for about a year, others for much longer, and both paths are entirely legitimate. How long you stay is a clinical decision you and your care team make together, based on how you’re doing rather than on a calendar.
Medications Used in Opioid Use Disorder Treatment
At BAART Programs, opioid treatment may include methadone or buprenorphine. Both are FDA-approved, both are backed by decades of research, and both are taken under medical supervision.
Methadone
- Long-acting medication taken once daily under medical supervision
- Reduces withdrawal symptoms and cravings
- Helps block the effects of other opioids
- Considered safe for long-term use, including during pregnancy and while breastfeeding
Buprenorphine
- A partial opioid agonist, meaning it has a ceiling effect
- Reduces cravings and withdrawal
- Lower risk of overdose when taken as prescribed
- May allow for more flexible dosing over time
A third medication, naltrexone, works differently: it blocks opioid effects rather than easing withdrawal, and it requires a period of abstinence before you can start it. That makes it a better fit for some people than others.
Your provider will work with you to find the right medication and dose based on your history, your tolerance, and your goals. If you’re taking other prescriptions, our guide to MAT guidelines and medication interactions explains what to share with your care team.
What to Expect When You Start Treatment
Your first visit typically lasts two to three hours. During that time, you’ll receive:
- A medical assessment
- Intake paperwork and screenings
- Your first medication dose, if appropriate
- An initial counseling session
- Education about OUD, medications, and your health
Bring a photo ID and insurance card if you have them. If you don’t have either, come anyway, we’ll work through it together. Daily visits are common early in treatment, and as you stabilize, take-home doses may be earned based on your progress and program guidelines.
Counseling and Support Services
Counseling and therapy are a required part of treatment and play a real role in long-term progress. You’ll get support with:
- Understanding opioid use disorder
- Managing stress, cravings, and triggers
- Building coping and relapse-prevention skills
- Improving relationships and daily functioning
You may also have access to case management and care coordination, pregnancy and parenting support, referrals for housing, healthcare, or employment, and guest medication services when you travel. If you’re also living with depression, anxiety, PTSD, or another mental health condition, co-occurring care treats both together instead of asking you to choose.
Getting Help Today
You don’t need to be ready. You don’t need to have stopped using. You don’t need a referral, a diagnosis, or a plan already in place. Calling is the whole first step, and it’s something the person on the other end of the line does every single day.
If you’re not sure where to start, find a BAART location near you or read about how to get started. Curious what an opioid treatment program actually offers? Our page on the benefits of an opioid treatment program covers it.
If you or someone you care about is at immediate risk, call 911. For mental health crisis support, call or text 988 to reach the Suicide & Crisis Lifeline, available 24 hours a day.
Why Choose Opioid Use Disorder Treatment at BAART
- Compassionate, personalized MAT. You’ll receive a treatment plan built around your needs, combining medication, counseling, and support in a respectful setting.
- Access to proven MAT medications. Methadone and buprenorphine are available at many BAART locations. Call to confirm which options are offered at the center nearest you.
- CARF-accredited care. Every BAART Programs facility meets rigorous standards for safety, ethics, and evidence-based treatment.
Frequently Asked Questions About Opioid Use Disorder
How Is Opioid Use Disorder Diagnosed?
A clinician evaluates you against eleven criteria in the DSM-5-TR. Meeting two or more within twelve months supports a diagnosis, and the number met determines whether it’s described as mild, moderate, or severe. This assessment is part of your first visit.
What Is the Difference Between Opioid Dependence and Opioid Use Disorder?
It’s a meaningful distinction. Dependence means your body has adapted to an opioid, so stopping brings on withdrawal: something that can happen to anyone taking opioids exactly as prescribed. Opioid use disorder is broader and includes loss of control over use, cravings, and continued use despite harm. Dependence on its own, under medical supervision, is not the same as OUD.
Does Treatment Lower My Risk of Overdose?
Staying in medication-assisted treatment is linked to significantly lower overdose death rates than no treatment at all. It doesn’t remove risk completely, which is why keeping naloxone on hand still matters.
Should I Keep Naloxone at Home?
It’s a reasonable precaution for anyone using opioids, and for the people who live with them. Naloxone is available without a prescription in every state, and it’s straightforward to use.
Is Opioid Use Disorder Treatable Long-Term?
Yes. OUD is a chronic condition that can be managed over the long term. With consistent care, many people reduce or stop opioid use, stay safer, and rebuild their daily routines.
Will Medication Make Me Feel High?
No. At the right dose, methadone or buprenorphine relieves withdrawal and cravings so you feel steady, alert, and able to function. Finding that dose usually takes a little time at the start.
Can I Work While in Treatment?
Often, yes. Treatment is outpatient, so you can keep working or caring for your family while you’re in it. Early visits may be more frequent, then ease up as you stabilize and earn take-home doses.
Is Treatment Safe During Pregnancy?
Yes. Methadone and buprenorphine are considered safe during pregnancy and while breastfeeding, and are the recommended approach. Your care can be coordinated with your OB provider.
For more questions about medication-assisted treatment, see our frequently asked questions.