Addiction & Conditions
Substance-by-substance and condition-by-condition guides to signs, risks, and treatment approaches.
Alcohol Use Disorder: Signs, Symptoms & Treatment
Alcohol use disorder (AUD) is a medical condition in which alcohol use becomes difficult to control despite harmful effects on health, relationships, work, education, or daily life…
Co-Occurring Disorders: Addiction & Mental Health
Co-occurring disorders are diagnosed when a person has both a substance use disorder and a mental health disorder. You may also hear this described as a dual diagnosis. The term ca…
Fentanyl Addiction: What You Need to Know
Fentanyl addiction is a form of opioid use disorder involving one of the most potent opioids in the current drug supply. It can develop after repeated use of illegally made fentany…
Opioid Addiction: Signs, Symptoms & Treatment
Opioid addiction can develop through prescription pain medicines, heroin, illicitly manufactured fentanyl, or other opioids. It is not a moral failing or a lack of willpower. Clini…
Overdose Warning Signs & Emergency Response
If you think someone may be overdosing now, call emergency services immediately. Use 911 in the United States, 999 or 112 in the United Kingdom, 112 throughout the European Union,…
Withdrawal Symptoms & Timelines by Substance
A withdrawal timeline estimates when symptoms may begin, become most intense and start to ease after someone reduces or stops a substance. It is a planning tool rather than a count…