Mental Health
Substance Use Disorder
Problematic use of alcohol or drugs affecting daily life.
Overview
Problematic use of alcohol or drugs affecting daily life.
Also known as: addiction, alcohol use disorder, aud, opioid use disorder, oud
In-depth guidance
A structured clinical overview of Substance Use Disorder — symptoms, red flags, causes, and care pathways — is being prepared by our clinical reviewers. In the meantime:
⚠ When to seek urgent care
Sudden severe symptoms, breathing difficulty, chest pain, confusion, fainting, severe bleeding, or any rapidly worsening illness need urgent assessment. Call your local emergency number.