Seeing changes in someone you love can feel frightening. You might wonder if these are signs of opioid use in a loved one. Unusual drowsiness, slow reactions, skipped duties, or dropping out of activities are possible signs.[1][2] Some changes cause worry but do not prove opioid use. They also cannot prove a person has opioid use disorder.
Look for immediate emergencies first.If you are worried about safety, call 911. If none exist, talk calmly. Next, get a professional assessment.
Talk about what you saw, not guesses or labels. This guide shows the difference between possible signs and a diagnosis. It also looks at risk factors and gives next steps. Read about signs of opioid addiction to see the bigger picture.
We publish a U.S. treatment directory. We do not provide treatment or claim medical review.If you suspect an overdose, call 911 immediately.
Behaviors That Could Cause Worry
Spotting changes in a loved one is scary. Yet it does not prove opioid use. Many signs here have other causes. These include stress, health problems, other drugs, or prescription meds. One sign alone does not prove opioid use or opioid use disorder.
The table below sorts what you may notice into three groups. It lists actions, active effects, and physical signs.
| Type of observation | Examples you might notice | What this tells you |
|---|---|---|
| Behavioral changes | Skipping work or school, dropping out of activities, keeping meds or money secret | These are nonspecific observations. They can signal distress or misuse. But they also happen for many other reasons. |
| Possible effects while opioids are active | Odd drowsiness, slow reactions, trouble staying awake, confusion[2] | Opioid intoxication can cause these.[2] They can also come from exhaustion, medical conditions, or other sedatives. |
What Do People Look Like While High on Opioids?
A person may seem very sleepy when opioids are active. They may struggle to stay alert.[2] Their replies may seem slow. Their thinking may feel foggy.[1] Breathing may slow in some cases.[1]
Do not wait for them to get better on their own.If someone is very hard to wake up or their breathing seems dangerously slow or shallow, call 911 now.
A lot of factors change behavior, not just illicit opioid use. Drowsiness and slow reactions can happen when you take prescribed pain medication as directed.[1] Other sedating medicines can seem alike. So can alcohol, lack of sleep, or medical problems. Talk to a licensed clinician if you do not know why alertness or coordination changed, instead of guessing.
What Behaviors Might Show Opioid Misuse?
You may see repeated missed duties at work or school. They might stop enjoying old hobbies. Secrecy about money or pill bottles is possible. They may also pull away from friends and family. These shifts can cause concern, but they do not prove misuse. Stress, depression, or other health issues can look similar.
When you talk with your loved one or their care team, describe specific observations. Say something like “I noticed you missed three shifts last month.” Avoid assigning motives like “You’re hiding pills.” Specifics help clinicians understand what’s going on without putting your loved one on the defensive.
See our guide to physical signs of opioid use disorder for more on body clues and urgent care.
Diagnosing Opioid Use Disorder
It can be frightening to notice changes in someone you love. One sign alone does not mean they have a disorder. It is helpful to understand the difference between opioid use, dependence, and opioid use disorder (OUD).
These words mean different things. Physical dependence happens when stopping the drug causes withdrawal symptoms.[3] OUD is distinct. It involves a harmful pattern of opioid use that leads to distress and affects daily life.[3] Our related guide covers more about the difference between dependence and addiction.
A diagnosis examines patterns seen over time. It does not focus on a single event or obvious sign. Doctors use the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, Text Revision (DSM-5-TR) to check this pattern. The manual lists 11 specific criteria for OUD.[4] A person needs to meet at least two of them within 12 months to get a diagnosis.[5]
If you take opioids exactly as prescribed under medical supervision, tolerance and withdrawal do not count.[6] This rule protects patients using medication safely for pain or recovery.
11 criteria
in the DSM-5-TR diagnostic framework for opioid use disorder[4]
2 criteria
needed within 12 months for a diagnosis[5]
Severity bands
range from mild (2–3 criteria) to moderate (4–5) to severe (6+)[4]
Doctors use these numbers as a tool, not as a checklist for families. You cannot diagnose OUD at home. If worrying signs appear, urge your loved one to speak with a doctor or licensed therapist. Only a qualified professional can check the full picture and see if the criteria for opioid use disorder are met.
What Raises the Risk of Opioid Use
Understanding risk factors can clarify your situation. Yet, they are background details, not evidence. Having them does not prove your loved one has opioid use disorder. Missing them does not rule it out. No single factor can predict a person's outcome.
These risks often go hand in hand. Frequent ones include:
- Using prescription opioids for longer periods or at larger amounts.
- Personal history of a substance use disorder.[7]
- Some mental health conditions.[7]
- Genetic traits or family history.[8]
- Difficult social settings or hard childhood events.
The FDA notes that the risk of opioid addiction, misuse, or abuse is increased in patients with a personal or family history of substance use disorder or mental illness.[7] Also, people who have family members with addiction appear to have a higher risk of addiction themselves.[8] This increased risk is likely due in part to shared genetic factors. But it may also be related to environment, lifestyle, and other nongenetic influences that are shared by members of a family.[8]
Do not view risk factors as moral failures. Someone can develop opioid use disorder with no clear warning signs. Many people with several risk factors never get a substance use disorder.
Let this prompt a calm talk or a visit to a professional. Do not use these points to accuse or label your loved one. Consider talking to their doctor or a licensed therapist about your concerns. They can give an accurate evaluation.
When the Signs Could Mean an Overdose
If you think someone is having an overdose, act now. Don't wait to find out if they have opioid use disorder. Call 911 immediately.
Warning signs of an opioid overdose include being unable to wake up, slow or shallow breathing, and pinpoint pupils.[9] Other signs can include a slowed heart rate and pale, blue or cold skin.[9]
- Describe what you see to the dispatcher and remain on the call.Call 911.
- Use naloxone if you have it. Naloxone can reverse an opioid overdose.[10] Follow the directions on the package or device. You may need repeat doses since naloxone is a temporary treatment.[10]
- Stay with the person. Follow the 911 dispatcher's instructions until help arrives. Even if the person seems to wake up, they still need emergency care.
In some places, you can get naloxone without a prescription from many pharmacies and communities. Check with your pharmacist about what is available near you.
See our guide on recognizing an opioid overdose for more about what to watch for and how to act.
Starting a Talk to Encourage an Assessment
If you are wondering how can you tell if a loved one is on drugs, the next step is often a gentle conversation. Choose a quiet time when you are both calm. Share what you have observed without placing blame. You could say, 'I care about you. I see some changes, and I am worried. Would you talk with a health professional with me?"
Try to listen more than you talk. Ask what kind of support they want right now. Do not use threats, shame, or demands that they admit to using. Such reactions often cause people to withdraw.
A professional assessment does more than confirm your fears. It helps explain what is going on and reviews choices. A doctor or licensed counselor asks about health history, substance use, and daily life. They may order tests. But American Society of Addiction Medicine guidelines say drug test results should not be the only thing used to assess for substance use disorder.[11] The full picture matters most.
See our guide on finding treatment for a loved one for help with next steps after this talk.
What Is the Safest Next Step?
This self-check is for information only and isn't a diagnosis. It cannot confirm opioid use or opioid use disorder, and no result rules out a problem.
Getting Help and Finding Care
After sharing your concern, the next step is finding care. You can treat opioid use disorder. Recovery can be supported by evidence-based treatment.[12] A qualified professional can help you find suitable options. These may change based on your loved one’s needs. For example, the FDA has approved three medicines for opioid use disorder. Naltrexone, buprenorphine, and methadone are those medicines.[13]
You do not need every answer before booking an appointment. Clear notes help the care team see what is going on. Gather what you know using the checklist below.
What to Bring Up When Seeking Help
Your ticks are saved on this device only.
Knowing about care types can help these conversations go better. Our guide to opioid rehab treatment options describes various settings using simple language.
Frequently Asked Questions
What are signs that someone is on opioids?
Changes can show up in alertness, behavior, or physical function. However, these signs vary from person to person. Since some opioids treat pain, seeing an effect alone does not prove misuse or opioid use disorder.[14] A health care professional must identify the cause.
How can I tell opioid use from opioid use disorder?
Using opioids is not the same as opioid use disorder. A clinician checks patterns and effects over time. Criteria include groups like impaired control, social issues, risky use, and drug effects.[15]
Can personality traits identify opioid use disorder?
No personality type reliably shows someone has opioid use disorder. Never view a label or trait as proof. Speak using respectful, person-first language. Look at specific changes and give support.
Do opioids cause personality changes?
Feelings and actions may shift due to opioids or withdrawal.[16] Yet seeing a change does not prove the cause. It also does not mean the change is permanent. Share what you saw and when it happened. If you worry, encourage a professional check.
What is an opioid belly?
“Opioid belly” is not a sign of opioid use disorder. Opioids can slow bowel movements, leading to constipation or bloating. However, other causes often explain these symptoms as well. A doctor can help identify the actual cause.
What should I do if I think someone I love has an opioid problem?
Call 911 right away if you think there is an overdose risk. If that fails, try having a calm talk about your observations. Offer to help schedule a doctor's appointment. You can also reach the SAMHSA National Helpline to find treatment referrals.[17]
