Tramadol
CAS: 27203-92-5 | Type: drug_of_abuse
Moderate Risk (Adults)
Safety Summary
Hazard Profilehazardous
Risk (Adults)Moderate
Risk (Children)High
Risk (Cats)High
Regulatory Status
SummaryNo major regulatory flags
Molecular FormulaC16H25NO2
Molecular Weight263.37
Sources
These citations are the ones recorded for the human adult context.
- US DEA: Tramadol — Schedule IV Rescheduling (2014), Dual Opioid/Serotonergic Mechanism, Serotonin Syndrome Risk, CYP2D6 Ultra-Rapid Metabolizer Hazard, Seizure Risk, and International Misuse Patterns (2022) REGULATORY · 2022
- US FDA: Tramadol — Pediatric Contraindication Safety Communication (2017, Children <12 and Post-T&A Adolescents), CYP2D6 Ultra-Rapid Metabolizer Deaths, Black Box Warning, and Drug Interaction Profile (Serotonin Syndrome, MAOIs) (2022) REGULATORY · 2022
- identity database ECHA CHEM, Download all substances: REACH registrations (ECHA's own list of REACH-registered substances) REGULATORY · 2026
- where to look PubChem: Toxicity section (CID 33741) PUBCHEM
- OEHHA Proposition 65 List of Carcinogens or Reproductive Toxicants (CSV, list date 31-Jul-26) REGULATORY
- Permissible Exposure Limits – OSHA Annotated Table Z-1 REGULATORY
- where to look DrugBank, as recorded by PubChem (Experimental Properties, CID 33741; where-to-look, not a source of this value) DATABASE · 2026
- EPA CompTox CTX API: predicted properties for DTXSID90858931 (Tramadol) REFERENCE
Same data as the API response, which is open and needs no key. The full per-record source list is available to authenticated callers.
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