# Black hellebore (Helleborus niger)

**Elleboro nero**

**Known today as.** The Christmas rose, *Helleborus niger*; the bark of the root was used.

Kind: Plant  
Qualities: Hot and dry in the third degree (Galen).  
Poisoning: Cardiac glycoside poisoning (https://thethinkingpress.org/materia-medica/poisons/cardiac-glycoside)  
Toxic: yes

> **Caution.** 

## What did Canale use it for?

The strongest purge for melancholic patients, and its extract among the other commended medicines (ch. 4).

## What does modern science say?

Black hellebore was the classical remedy for madness from Hippocrates on. It is a violent purgative and a cardiac poison, and has no place in conventional medicine today.

## Pharmacognosy and toxicology

- **hellebrin**: a bufadienolide glycoside
- **protoanemonin**: an irritant, in the fresh plant

**Mechanism.** Hellebrin acts on the heart as the digitalis glycosides do; the saponins and protoanemonin purge violently.

**Dose.** Uncertain; the root has killed in gram amounts.

**Standing.** No medicinal use.

## What lore surrounds it?

The drug of madness and melancholy stood exactly where Canale’s art had to draw its line: which sufferers were ill, and which bewitched. Hellebore purged the one; the exorcist addressed the other.

## What did the older authorities say?

**Hippocratic writers.** The great purge of Greek medicine, given for madness, melancholy, and obstinate disease.

**Myth.** The seer Melampus was said to have cured the daughters of Proetus of their madness with it, whence its Greek name *melampodion*.

**Horace.** “To Anticyra!”: the Phocian town famous for its hellebore became a byword for a cure for madness.

## Sources

- Nelson, L. S., et al. (2007). *Handbook of Poisonous and Injurious Plants*.

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*Black hellebore.* In *Materia Medica*, edited by B. C. P. Statema. Version 1, revised 2026-09-25. The Thinking Press. https://thethinkingpress.org/materia-medica/black-hellebore

Historical description, not medical advice.