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28 unique sources back the 5 published profiles on this site. Every one is linked below, and every one is linked again right where it's used.
Government health authorities and peer-reviewed research. Nothing else.
Every factual claim traces back to a primary source: agencies like NIDA, the CDC, SAMHSA, and the DEA, or peer-reviewed studies indexed by NIH/PMC. We don't cite blogs, advocacy sites, or secondhand summaries.
One claim, one link, every time.
Every statistic and factual claim on the site carries its own inline citation, rendered as a source readout you can tap straight through to the original page. If a number doesn't have a source next to it, it's labeled as an estimate, not a fact.
Curated, not crowd-sourced.
Substance profiles are co-written and fact-checked by the maintainer before they publish, not submitted by the public. The code that runs this site is open-source; the content is reviewed editorially.
Profiles get re-checked, not just published once.
Each profile carries a last-fact-checked date. Public health guidance changes, so profiles are revisited rather than treated as permanent.
Government & health authorities
- CDC — Cannabis & Brain Healthused in: Cannabis
- CDC — Cannabis Health Effectsused in: Cannabis
- CDC — Cannabis Use Disorderused in: Cannabis
- CDC — Ketamine in Drug Overdose Deaths (Notes from the Field)used in: Ketamine
- CDC MMWR — 2024 National Youth Tobacco Survey (2024)used in: Nicotine
- CDC MMWR — Overdose Deaths Involving Stimulantsused in: Cocaine
- DEA — Facts About Fentanylused in: Cocaine
- DEA — Ketamine Drug Fact Sheetused in: Ketamine
- NHTSA — Drug-Impaired Drivingused in: Database — driving warning
- NIAAA — Alcohol and the Adolescent Brainused in: Alcohol
- NIAAA — Alcohol and Young Adults Ages 18 to 25used in: Alcohol
- NIAAA — Alcohol's Effects on the Bodyused in: Alcohol
- NIAAA — Interrupted Memories: Alcohol-Induced Blackoutsused in: Alcohol
- NIAAA — Understanding Binge Drinkingused in: Alcohol
- NIAAA — Understanding the Dangers of Alcohol Overdoseused in: Alcohol
- NIDA — Cannabis (Marijuana)used in: Cannabis
- NIDA — Cocaineused in: Cocaine
- NIDA — Cocaine DrugFactsused in: Cocaine
- NIDA — Is nicotine addictive?used in: Nicotine
- NIDA — Psychedelic and Dissociative Drugsused in: Ketamine
- NIDA — The Adolescent Brain and Substance Useused in: Nicotine
- Own Your Limits (U.S. military) — Alcohol Spendingused in: Alcohol
- SAMHSA — 2023 NSDUH (2023)used in: Cannabis, Cocaine
- U.S. Surgeon General — Alcohol and Cancer Risk Advisory (2025)used in: Alcohol
Peer-reviewed & academic research
- Hallucinogen Use in the US, 2021–2023 (Palamar et al., NIH/PMC)used in: Ketamine
- Ketamine-Induced Cystitis: A Comprehensive Review (NIH/PMC)used in: Ketamine
- Pergolizzi et al. — Cocaethylene review (Cureus, NIH/PMC)used in: Cocaine
- UCL Centre for Longitudinal Studies — Millennium Cohort Study (UK) (2026)used in: Home — The Landscape
This list is generated directly from the same citation data shown inline across the site, so it can't drift out of sync. See the disclaimer for what this site is and isn't.