What Are Substance Use Disorders?
Substance Use Disorder (SUD), often referred to as addiction, is a complex medical condition. People with SUDs continue to use alcohol, drugs, or other substances even when that use causes significant problems in their lives. SUDs affect a person’s brain and behavior, making it extremely difficult to stop using, even with a strong desire to do so.
Common Substances
SUDs can involve a wide range of substances, including:
- Alcohol: Despite its widespread social acceptance, alcohol can cause severe dependence and lead to long-term health problems.
- Prescription medications: Opioids (pain relievers like oxycodone or hydrocodone), benzodiazepines (anxiety medications like Xanax or Klonopin), and stimulants (often prescribed for ADHD, such as Adderall) can lead to addiction when misused.
- Illicit drugs: This broad category includes cocaine, heroin, methamphetamine, cannabis (marijuana), hallucinogens, and others.
- Other substances: Inhalants (household chemicals), synthetic drugs, and the misuse of over-the-counter medications can also contribute to the development of an SUD.
The Spectrum of Substance Use
Understanding the difference between substance use and a full-blown SUD is crucial:
- Social or recreational use: Occasional substance use in situations where it generally causes no major harm.
- Problematic use: A pattern of use that begins to interfere with daily life – affecting health, relationships, or performance at work or school.
- Substance use disorder (addiction): Characterized by a loss of control over use, cravings, the inability to stop despite serious negative consequences, and changes in the brain that make quitting extremely challenging.
Busting Harmful Myths
Sadly, stigma and misunderstandings surround SUDs. Here’s the truth:
- Myth: People with SUDs lack willpower or are morally flawed. Reality: SUDs are chronic brain diseases with a complex interplay of biological, environmental, and psychological factors. Blaming the individual is not only inaccurate but creates shame that prevents people from seeking help.
- Myth: Only people living with homelessness or poverty struggle with SUDs. Reality: SUDs affect people from all walks of life regardless of age, gender, race, socioeconomic background, or profession.
Viewing SUDs as treatable medical conditions fosters compassion, lessens judgment, and encourages those struggling to get the help they deserve. Addiction doesn’t have to define a person’s life. Recovery is possible, and with the right support, people with SUDs can reclaim healthy and fulfilling lives.
Originally published: August 14, 2024
Last reviewed: August 23, 2026
This page provides general behavioral health information for educational purposes and is not a substitute for individualized medical or mental health advice, diagnosis, or treatment. Using this site does not establish a healthcare professional relationship with Dr. Vernig. Read the full Disclaimer or visit Get Help Now if you need immediate support.
