Why is first-time use risky?
- By Robert Mauer
- Reviewed by: Dr. Janaka Hanvey, PhD
First-time use is risky because the body has no prior exposure, making the effects difficult to predict. Individuals do not yet know how strongly they will react or what dose may be excessive.
There is no established tolerance, so even moderate amounts can produce strong effects, particularly with substances that impair breathing or consciousness.
Lack of experience, unfamiliar settings, and limited knowledge about the substance can further increase the likelihood of unsafe dosing or combinations.
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National Institute on Drug Abuse (NIDA) — Drugs, Brains, and Behavior: The Science of Addiction
Government scientific overview of drug use, addiction, brain changes, tolerance, dependence, and recovery.
National Institute on Drug Abuse (NIDA) — Commonly Used Drugs Charts
Comprehensive federal reference covering major drug categories, effects, overdose risks, and health consequences.
Substance Abuse and Mental Health Services Administration (SAMHSA) — Substance Use and Mental Health
Federal information about substance use, addiction, prevention, treatment, and behavioral health.
MedlinePlus — Drugs and Young People
Government medical resource discussing drug effects, misuse, addiction risks, and substance use education.
National Institute on Drug Abuse (NIDA) — Understanding Drug Use and Addiction DrugFacts
Clear explanation of why people use drugs, how addiction develops, and how substance use affects the brain and behavior.