Aconitum napellus
Made from monkshood (Aconite) — one of the most violently poisonous plants in the garden, whose poison drives the heart and nerves into overdrive.
The whole picture, in one breath
Think of a state that comes on suddenly — after a sharp cold wind, a fright, or exposure to dry cold — with intense fear, restlessness, a pounding heart, burning thirst and a high fever, all at once. The person is sure they will die, and may even predict the hour. That violent, sudden, fearful onset is the classical Aconite picture.
The substance, in plain words
Aconite is the purple-hooded monkshood, a garden plant whose roots and leaves carry the poison aconitine. In tiny doses aconitine excites nerve and heart cells; in larger ones it causes the tingling, vomiting, irregular heartbeat and collapse of classic aconite poisoning — the very picture the old authors recorded.
The traditional picture Classical sources
The inner state
- Sudden overwhelming fear. Terror of death is the keynote; the person predicts the time of their end and begs not to be left alone.
- Restless anguish. Tosses about, cannot stay in one place — yet unlike Arsenicum, everything begins and peaks with violent suddenness.
- After-shock states. The classical authors gave it to ailments from fright, shock and exposure to cold, dry wind — ailments with a clear moment of onset.
The body
- Violent onset fever. High fever with burning heat, thirst, a hard bounding pulse and dry hot skin, coming on within hours of the chill.
- Pounding heart and vessels. Palpitations, a full hard pulse, flushing and throbbing in the head and arteries.
- Face and eyes. Flushed face, staring eyes, pupils contracted or dilated; sensitivity to light.
- Thirst. Craves cold water in quantity, unlike Arsenicum's small sips.
- Tingling and numbness. Crawling, prickling sensations and numbness — an echo of the poison's action on nerves.
- Croupy cough. A dry, barking, anxious cough, worse at night, with fear and restlessness.
Modalities (worse and better factors)
| Worse from ⬇ | Better from ⬇ |
|---|---|
| cold dry wind; exposure; evening and night; warm room. | open air; quiet; sweating when it comes. |
Where it acts (organ affinities)
Heart and circulation, nervous system, airways, the body's surface heat-regulation.
Where the classical picture comes from
The classical portrait is a close description of aconite poisoning: within minutes of the poison come tingling of the lips and skin, sweating, vomiting, violent palpitations, arrhythmia, fear and collapse — recorded in nineteenth-century poisonings and provings.
The substance in real medicine Pharmacology
What this section is: the pharmacology and toxicology of the source substance. It is not clinical evidence that a homeopathic preparation of it treats any condition. What controlled trials do and do not show is set out on the Evidence page.
Aconitine is a powerful activator of sodium channels, which is exactly why it is dangerous: overdoses drive the heart into fatal arrhythmia. Modern medicine has no therapeutic use for it, but it remains a standard laboratory tool for studying cardiac excitability, and its poisoning syndrome is textbook toxicology.
Look-alikes (how the classical authors told it apart)
| Remedy | Looks similar because… | Tells it apart because… |
|---|---|---|
| Arsenicum album | Fear of death, restlessness, chilliness | Arsenicum develops slowly with burning, chilliness and prostration; Aconite strikes suddenly after cold or fright, with heat and violent onset. |
| Belladonna | Sudden fever, redness, throbbing | Belladonna is hot, red, dry and semi-delirious without the terror of death; Aconite is anxious, fearful and palpitating. |
| Chamomilla | Restlessness, irritability | Chamomilla's irritability is angry and snappish, with hot sweaty head; Aconite's is fearful. |
| Coffea cruda | Sleeplessness from excitement | Coffea follows joy and over-stimulation; Aconite follows fright and cold shock. |