Dragon’s blood (Dracaena cinnabari), plate: Dragon tree of Orotava before 1819
Dragon tree of Orotava before 1819. Charles Lemaire.
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Dragon’s blood

Sangue di drago

Known today as
The red resin of Dracaena cinnabari of Socotra, which came in tears (drops), or of the rattan palm Calamus draco (formerly Daemonorops draco).
Kind
Resin & Wood, in 1 older authority
Constituents
dracorhodin and dracorubin, taspine, proanthocyanidin oligomers (SP-303)
Earliest authority here
Pliny (AD 23/24–79)
In the Canale glossary
On the Manner of Discerning and Healing the Bewitched, Appendix A: Part Three, Chapter 9: Anointings

Revised October 1, 2026: Lore added from texts read in full. Version 1, first published September 25, 2026.

Dragon’s blood: what did Canale use it for?

In the oil for hexes (ch. 9).

Dragon’s blood: what does modern science say?

Astringent; a varnish colorant; still used in traditional medicine in many cultures.

Pharmacognosy & Toxicology

Constituents
Mechanism
Two resins share the name: the East Indian rattan resin, an astringent pigment and varnish, and the Amazonian Croton lechleri latex, whose taspine speeds wound closure in animals and whose proanthocyanidin fraction blocks chloride secretion in the gut. The latter was approved by the FDA in 2012 as crofelemer (Mytesi) for diarrhoea in HIV patients, the first botanical drug from a rainforest sap.
Toxic dose
The resins are safe; crofelemer is given at 125 mg twice daily.
Standing
Crofelemer is an FDA-approved prescription drug; the Asian resin is a dye and varnish.
  • Macarthur, R. D., et al. (2013). “Efficacy and safety of crofelemer for noninfectious diarrhea in HIV-seropositive individuals (ADVENT trial).” HIV Clinical Trials 14. Verified against its record · doi:10.1310/hct1406-261
  • Gupta, D., et al. (2008). “Dragon’s blood: botany, chemistry and therapeutic uses.” Journal of Ethnopharmacology 115. Verified against its record · doi:10.1016/j.jep.2007.10.018

The abstract of each source, beneath its citation. For Club members. About the Club or sign in.

Constituent names open the compound’s record at PubChem, and “ChEMBL” beside a name opens its record at ChEMBL, the European Bioinformatics Institute’s database of bioactive molecules. Where a mechanism line was checked against ChEMBL (ChEMBL 37, read 1 October 2026), the check is shown with the measured value and its source paper, or says plainly that nothing has been measured. Doses are as the references give them, for description only; this is not medical advice. Each source carries the result of its check against Crossref, PubMed, or the authority’s page: see Verification.

Dragon’s blood: what lore surrounds it?

Grieve notes the uses of the resin “as a colouring matter for varnishes, tooth-pastes, tinctures, plasters, for dyeing horn to imitate tortoiseshell,” and that the dragon tree, Dracaena Draco, “shares with the baobab tree the distinction of being the oldest living representative of the vegetable kingdom, being much reverenced by the Guanches of the Canaries, who use its product for embalming in the fashion of the Egyptians.”

Dragon’s blood: what did the older authorities say?

Pliny
Repeats the fable that the red cinnabaris was the mingled blood of a dragon and an elephant slain in their combat.

Sources

  1. [16] The British Pharmaceutical Codex (1911). London: Pharmaceutical Society of Great Britain. Monographs as transcribed at Henriette’s Herbal Homepage, henriettes-herb.com. Read in full · the text read
  2. [38] Encyclopaedia Britannica, online edition, britannica.com. Articles: Ambergris; Aristolochiaceae; Asafetida; Azurite; Castor-oil plant; Civet; Dragon’s blood; Garden cress; Jet; Kermes; Laudanum; Lye; Monemvasía; Musk; Precious coral; Saltpetre; Sulfur dioxide; Tartar emetic; Tropaeolum. Book, seen in reviews
  3. [57] Gupta, D., Bleakley, B., & Gupta, R. K. (2008). Dragon’s blood: botany, chemistry and therapeutic uses. Journal of Ethnopharmacology 115(3): 361–380. doi:10.1016/j.jep.2007.10.018 Verified against its record · doi:10.1016/j.jep.2007.10.018
  • Grieve, M. (1931). A Modern Herbal, “Dragon’s Blood.” botanical.com/botanical/mgmh/d/dragon20.html Standard reference work

Verification

Checked
October 1, 2026
Passes
  • Every sentence read against its sources, in the pass over the remaining 343 entries
  • The Standing line checked against the authority it names (EMA, WHO, FDA, CITES, Commission E)
  • Every dated or regulatory claim checked by category across the database
  • Each quotation from the older authorities checked word for word against the text, read in full
Sources
6 cited: 1 read in full, 3 verified against its record, 1 standard reference work, 1 book, seen in reviews. 1 with the abstract on file.
Corrections
None were needed.

What was checked, how, and what was found is set out on the Verification page. A checked source is one whose record was found; it does not make the entry medical advice.

Cite This Entry

Version 1 · first published September 25, 2026 · last revised October 1, 2026

Chicago

“Dragon’s blood.” In Materia Medica, edited by B. C. P. Statema. Version 1. The Thinking Press, 2026–. Last modified October 1, 2026. https://thethinkingpress.org/materia-medica/dragons-blood.

MLA

“Dragon’s blood.” Materia Medica, edited by B. C. P. Statema, version 1, The Thinking Press, 1 Oct. 2026, thethinkingpress.org/materia-medica/dragons-blood. Accessed 8 Oct. 2026.

APA

Dragon’s blood. (2026, October 1). In B. C. P. Statema (Ed.), Materia medica (Version 1). The Thinking Press. Retrieved October 8, 2026, from https://thethinkingpress.org/materia-medica/dragons-blood

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See Also

Drawing on the same sources: Grieve, Gupta

Elder · Devil’s-bit scabious · Rosemary rice water · Sulfur · the bibliography →

Nearby in the alphabet

Dover’s powder (with salts, in a powder) · Earth of the Holy Land · Dittany (Origanum dictamnus, famous in antiquity for drawing out arrows) · Earthworm (washed in wine, dried, powdered, or boiled in oil) · Dill (Anethum graveolens) · Diatrion piperion (with aniseed and ginger)

Historical description, not medical advice.