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Updated: May 26, 2026

Fast Inspection of Quality of Indigo Naturalis by Multiple Light Scattering
Published on: August 18, 2023
[Fatal poisoning due to Indigofera]
S Labib1, M-A Berdai, A Bendadi
1Service d'anesthésie réanimation, hôpital mère et enfant, CHU Hassan II de Fès, Fès, Maroc. labib.smael@hotmail.fr
Indigo dye, used in Moroccan crafts and traditional medicine, caused fatal poisoning in a child. This case highlights the unknown toxicity of indigo and the need for further toxicological studies.
Area of Science:
- Ethnobotany
- Toxicology
- Pharmacology
Background:
- Indigo dye (Nila) is derived from Indigofera tinctoria, a plant used in Moroccan handicrafts and traditional remedies.
- The plant is indigenous to tropical Africa and Asia and is processed via fermentation.
Observation:
- A fatal poisoning case involved a 3-year-old child who received indigo for therapeutic reasons.
- The child's death was attributed to multiple organ failure.
Findings:
- The specific toxic constituents and mechanisms of indigo dye are not well-documented in scientific literature.
- This case underscores a potential risk associated with the therapeutic use of indigo.
Implications:
- Further toxicokinetic and toxicodynamic research is crucial to understand indigo's toxicity.
- This study calls for a re-evaluation of the safety of indigo in traditional and therapeutic applications.
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