- Substances
- Cannabis, including:
- Commonly used forms of marijuana: flower, resin, extracts, purified cannabinoids, and cannabidiol
- Routes of administration
- Consequences
- Impacts of changing laws and policies
- Potential therapeutic benefits or harms
- Novel Psychoactive Substances (NPS), particularly:
- Synthetic opioids including fentanyl and its analogues
- Other NPS entering wide use
- Opioids
- Prescription opioids
- Heroin
- Injection and non-injection use
- Psychostimulants
- Cocaine
- Methamphetamine
- Other amphetamine-type stimulants
- Inhalants
- Tobacco and nicotine, including
- E-cigarettes
- Vaping
- Cannabis, including:
- Topics
- Basic research on neuroscience and biology
- Epidemiology, intervention, and implementation research
- Recovery research
- Policy research
- Linkages between HIV/AIDS and drug use