Colchicine

Safety Summary

Regulatory Status

Sources

These citations are the ones recorded for the human adult context.

• IARC Monographs Volume 56: Some Naturally Occurring Substances — Food Items, Heterocyclic Amines and Mycotoxins; Colchicine Evaluation, Group 3 Classification (1993) REGULATORY · 1993
• US FDA: Colchicine — Drug Safety Communication on Narrow Therapeutic Index, Overdose Risk, Drug Interactions (Colcrys), and Toxicokinetics (2012) REGULATORY · 2012
• identity database ECHA CHEM, Download all substances: REACH registrations (ECHA's own list of REACH-registered substances) REGULATORY · 2026
• 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 PAC Chemical Database, U.S. Department of Energy, as recorded by PubChem (Experimental Properties, CID 6167; where-to-look, not a source of this value) DATABASE · 2026
• EPA CompTox CTX API: predicted properties for DTXSID5024845 (Colchicine) REFERENCE
• ECHA Annex VI to CLP: the unofficial Excel table (up to and including the 23rd ATP) REGULATORY

Same data as the API response, which is open and needs no key. The full per-record source list is available to authenticated callers.