Addiction medicine
Addiction medicine is the medical field focused on preventing, evaluating, diagnosing, treating, and supporting recovery from addiction and substance-related health conditions.
What addiction medicine is
Addiction medicine is the medical field focused on unhealthy substance use, addiction, recovery, and substance-related health conditions. It combines prevention, diagnosis, medications, behavioral care, harm reduction, withdrawal management, public health, and long-term support. The field treats addiction as a health condition, not a moral failure.
Substance use and addiction
Not all substance use is addiction, and not all risky use looks the same. Clinicians consider loss of control, craving, tolerance, withdrawal, continued use despite harm, time spent obtaining or using substances, and effects on health, work, school, relationships, safety, and responsibilities. Addiction medicine also recognizes that biology, trauma, stress, social conditions, drug supply, mental health, and pain can all affect risk.
Diagnosis and assessment
Assessment begins with a nonjudgmental history: what substances are used, how often, by what route, in what amounts, and with what consequences. Clinicians also ask about overdose risk, withdrawal risk, pregnancy, infections, pain, psychiatric symptoms, housing, legal issues, work, family support, prior treatment, medications, and readiness for change. Toxicology testing can help, but it should be used carefully and explained clearly.
Medication treatment
Medications can be lifesaving for some substance use disorders. Methadone, buprenorphine, and naltrexone can treat opioid use disorder in different ways. Naltrexone, acamprosate, and disulfiram may be used for alcohol use disorder. Nicotine replacement, varenicline, and bupropion can support tobacco treatment. Medication choices depend on diagnosis, goals, safety, access, pregnancy, other illnesses, and patient preference.
Counseling and recovery support
Behavioral treatment can help people understand triggers, build coping skills, repair relationships, manage cravings, treat trauma, and plan for high-risk situations. Motivational interviewing, cognitive behavioral therapy, contingency management, family therapy, group treatment, peer recovery support, and mutual-help groups may all play roles. Recovery is not one path; some people need intensive treatment, while others do best with low-barrier ongoing care.
Harm reduction
Harm reduction reduces the risk of death, infection, injury, and other harms whether or not a person is ready or able to stop using substances. Examples include naloxone, safer-use education, fentanyl test strips where legal and available, syringe services, infection testing and treatment, overdose prevention counseling, and safer prescribing. Harm reduction can be a bridge to treatment, but it is also valuable in its own right.
Co-occurring conditions
Addiction medicine often overlaps with psychiatry, primary care, infectious disease, pain medicine, emergency care, obstetrics, and public health. Depression, anxiety, PTSD, bipolar disorder, ADHD, chronic pain, hepatitis C, HIV, heart infection, pregnancy, homelessness, and incarceration can change the care plan. Treating addiction separately from the rest of a person's life usually misses important drivers of relapse and recovery.
Why it matters
Addiction medicine matters because substance use disorders can affect survival, families, work, housing, pregnancy, communities, and health systems. Evidence-based treatment can reduce overdose, improve health, support recovery, and restore trust in care. The field also matters because stigma can keep people away from help; respectful medical care can make treatment easier to start and safer to continue.