Medically reviewed by Michael MacIntyre, MD Key Takeaways Substance use disorder makes it hard to stop using substances even when they're harmful.Using the term "substance use disorder" helps separate ...

Substance use and substance use disorder differ by the frequency of use and the effect on a person’s life. Substance use disorder is a mental health condition. Substance use refers to using both legal ...

Polysubstance use disorder is a mental health condition in which someone uses more than one substance at the same time or within a short period of time, despite a pattern of negative effects.

Naltrexone has long been used to treat alcohol use disorder. Now it’s gaining attention as a tool for people who want to cut ...

Many surgeons recommend giving up smoking, alcohol, or drugs before surgery, but researchers have found this may also increase the need for pain medication.

State health officials say accidental opioid overdose has been the leading cause of death among pregnant women in Louisiana since 2018.

Increasing numbers of ketamine users are asking if they may be addicted to ketamine. The answer often is yes. We don’t yet know how widespread ketamine use disorder (KUD) is. Still, the internet is ...

New guidelines for blood-based biomarkers, the impact of hormone replacement therapy, and risks for cognitive decline with ...

Dr. Smita Das often hears the same myth: You can’t get hooked on pot. Kaiser Northern California honored with top marks for quality South Bay restaurant cleared to reopen after meat-slamming video ...

Multiple studies have linked having schizophrenia with an increased risk of violent crime, specifically those also with ...