Signs of a Drug Problem

Key takeaway

NIDA's family page, dated January 4, 2021, says one sign of addiction is continued drug use despite harm to health, school or work, or relationships, and feeling unable to stop. Other signs, such as grades, sleep, and appearance, can have different causes. The list is not a diagnosis and not a label for a relative.

Last updated: Mon Oct 05 2026 00:00:00 GMT+0000 (Coordinated Universal Time)

You are staring at someone you love and trying to decide whether you are seeing a drug problem or a bad month. NIDA published a short page for parents and educators on January 4, 2021. It is not a new national survey, and it is not a diagnostic manual. It says addiction can happen at any age, that it usually starts when a person is young, and that it comes from changes in the brain that drug use can produce. It also says there is no "type" of person who becomes addicted. Background, appearance, and money do not sort people in or out.

The sign NIDA puts first is the one that is hardest to explain away. A person keeps using drugs even though that use is harming their life: physical health, performance at school or work, or relationships. They feel like they cannot stop, no matter what happens. The rest of the list is about changes that can point the same direction and can also point somewhere else.

What SAMHSA says about enabling, and why it tells counselors not to use the word codependent, is the codependency guide. How information and household rules work is the boundaries guide. What you can still do when someone will not enter care is the refusal guide.

If someone may be overdosing, will not wake, or cannot breathe, call 911. If you are worried they may act on thoughts of suicide, call or text 988.

The first sign, then the others

NIDA's other signs can include:

Spending time with different friends than usual.
Not caring about appearance.
Getting lower grades.
Missing classes or skipping school.
Losing interest in activities that used to matter.
Getting in trouble at school or with the law.
Eating or sleeping differently.
Having more problems with family and friends.

Read the school items as school items. They were written for families watching students. An adult who has no classes will not skip school. The work half of NIDA's first sentence still applies: performance at work, health, and relationships. Do not drop an adult off the list because the examples mention grades. Do not force the grade items onto a coworker to make the list feel complete.

NIDA does not say that one changed habit proves drug use. Sleep can change because of depression, a new shift, or a medicine. Friends change for ordinary reasons. Trouble with the law can be unrelated. The weight sits on continued use despite harm, plus the sense of being unable to stop. Without that, a messy semester is not a finding.

NIDA's cannabis research page uses the same idea in clinical language. Cannabis use disorder, in the manual it cites, includes using even though it causes problems at work, school, or home, and continuing despite physical or psychological problems the person knows are tied to cannabis. That is the harm sign, written for one substance. The rest of that disorder is the cannabis treatment guide. A red eye or a smell in a bedroom is not a diagnosis the 2021 signs page offered.

What the list does not authorize

A list is not a search warrant and not a speech. NIDA's signs page does not tell you to go through a bag, a phone, or a room. It does not tell you to announce a diagnosis at dinner. Why a confrontational showdown is a poor match for what SAMHSA and NIAAA actually recommend is the tough-love guide. People pressed into treatment by confrontation are, in SAMHSA's family protocol, more likely to return to use than people encouraged with positive reinforcement. A sign is a reason to pay attention, not a script.

Patterns children sometimes take on when a parent is using are the family roles guide. Those roles are not the same as NIDA's sign list, and they are not a child's fault. Level of care and confidentiality, when the person who may need help is young, are the teen treatment guide. A parent still cannot score this list and call it an assessment.

Alcohol has its own questions. What a clinician may ask, including drinking more than intended, craving, and withdrawal, is the high-functioning guide. Use that page for alcohol. Use NIDA's list for a drug problem. If both might be true, say both to a clinician instead of picking the shorter list.

Do not answer the list by telling someone to stop alcohol or a benzodiazepine tonight. The medical risk of a sudden stop after prolonged heavy drinking is the alcohol withdrawal guide. An order to quit is not a detox plan.

If you are unsure, the next step is a person, not a label

You can be wrong about the cause and still be right to ask for help. NIDA's point that there is no type of person is also a warning against the opposite mistake: deciding someone is fine because they still have a job, a clean kitchen, or a polite voice. The harm sign is about consequences and about not being able to stop. It is not about whether the person matches a picture.

The federal locator is FindTreatment.gov. SAMHSA's National Helpline, 1-800-662-HELP (4357), refers callers to local treatment and support. Family members can call for themselves. The clinical service, and when a joint session should not happen, including violence, is the family therapy guide.

Call or text (800) 653-9376 if you want help finding a program for the person you are worried about, or a place that works with families. You do not have to be sure first.

Additional Resources

Sources cited on this page:

Common Questions

Is this list a way to diagnose someone?

No. NIDA published it for parents and educators as signs that can appear, not as a test you can score at the kitchen table. The first sign it highlights is continued use despite harm, and a feeling of being unable to stop. The other items, such as grades or sleep, can come from depression, stress, or a medical problem. A clinician has to sort that out.

Does the list apply only to teenagers?

The examples lean young. NIDA says addiction can happen at any age, and that it usually starts when a person is young. Several items are about school: lower grades, missing class, trouble at school. The harm it puts first is not limited to a classroom. It includes physical health, performance at school or work, and relationships. An adult who keeps using despite those costs is inside that sentence. The school items may simply not fit.

If I see these signs, am I supposed to confront them?

NIDA's signs page does not give you a speech. The guide for someone who refuses treatment is the calmer next step, including the limit on forcing an adult into care. The tough-love guide explains why SAMHSA contrasts confrontation with positive reinforcement. Accusing someone from a checklist can be wrong, because the checklist has other explanations. If they may be overdosing or will not wake, skip the talk and call 911.

Is worrying about them the same as enabling?

No. The codependency guide is SAMHSA's warning against that label, and its description of enabling as ordinary help that can still make use easier. Seeing a sign is not enabling. Paying someone's costs so use has fewer consequences is the behavior that page discusses. The signs here stop at what NIDA says you might notice.

What if the signs are alcohol, not other drugs?

Use the high-functioning guide for the questions NIAAA says a clinician may ask about alcohol use disorder, including blackouts and withdrawal. The list here follows NIDA's drug-problem signs. The alcohol checklist stays on that other guide. Either way, a sudden stop after prolonged heavy drinking can be dangerous. Ask for a medical assessment instead of telling someone to quit tonight.