The term “comorbidity” describes two or more disorders or illnesses occurring in the same person. They can occur at the same time or one after the other. Comorbidity also implies interactions between the illnesses that can worsen the course of both. Read the DrugFacts
- MEDLINEplus Health Information on Substance Use Disorders (National Library of Medicine, NIH)
- Healthfinder.gov (U.S. Department of Health and Human Services)
Clinical trials are research studies in human volunteers conducted to answer specific health questions. Learn about the NIH-sponsored clinical trials available to you.
- NIDA Clinical Trial Locator - answer a few simple questions and get contact information for Clinical Trials near you.
- NIDA COVID-19 Resources
- HHS: About the Multiple Chronic Conditions Initiative (U.S. Department of Health and Human Services)
- Longitudinal Study of Adolescent Brain Cognitive Development (ABCD Study) (NIDA)
- Mental Health and Addiction Insurance Help (U.S. Department of Health and Human Services)
- First-Episode Psychosis and Co-Occurring Substance Use Disorders (SAMHSA)
- National Institute of Mental Health (NIMH)
- CDC - Federal Disaster Mental Health Resources