Cocculus indicus
Made from Indian cockle — the fish-poison berry whose picrotoxin is a genuine convulsant research drug, and the classical remedy of motion sickness and the exhaustion of caring.
The whole picture, in one breath
Think of the carer who has emptied herself: motion sickness from the least ride, a hollow, empty, all-gone weakness, trembling and numbness, sleeplessness from nursing and watching, worse for eating, worse for loss of sleep — the books' great remedy of the exhausted nurse and the seasick traveller. The emptied, motion-sick remedy: that is Cocculus.
The substance, in plain words
The Indian cockle is the berry of the fish-poison tree, its picrotoxin a genuine, potent convulsant — used in pharmacology as a research tool to study the brain's inhibition. The proving gave the remedy its portrait of emptiness, motion-sickness and the exhaustion of watching and caring.
The traditional picture Classical sources
The inner state
- Anxiety with the weakness. Fear, worry, worse in the quiet hours; the books paint the anxious, depleted carer.
- Irritability. Cross from sheer exhaustion, worse from noise.
- Difficulty of thinking. Slow, foggy thought with the emptiness — the books' great mental-fatigue companion.
The body
- Motion sickness. The keynote: nausea, dizziness and sickness from riding, sailing, even swinging — the classical travel-sickness remedy.
- Empty, all-gone feeling. A hollow emptiness in the head and stomach, as if nothing were left inside.
- Worse for loss of sleep. Nursing mothers and night-watchers — the exhaustion of broken sleep aggravates everything.
- Trembling and numbness. Weakness with trembling, and numbness of the parts — the picrotoxin shadow, mild.
- Worse eating and drinking. Food and drink, especially cold, restart the nausea and emptiness.
- Better for rest and warmth Rest, warmth and quiet restore a little of the spent reserves.
Modalities (worse and better factors)
| Worse from ⬇ | Better from ⬇ |
|---|---|
| motion of carriage and ship; loss of sleep; eating and drinking; cold air. | rest; warmth; quiet; open air |
Where it acts (organ affinities)
Nervous system (motion sickness, weakness), stomach, senses, general vitality.
Where the classical picture comes from
The fish-poison berry's convulsant chemistry gave the proving its emptiness-and-trembling portrait; clinically Cocculus attached to the exhausted nurse, the night-watcher and the seasick traveller — the emptied ones of the old books.
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.
Picrotoxin is a genuine, working pharmacological tool — a GABA-antagonist convulsant used for decades in neuroscience research to map the brain's inhibitory pathways. The motion-sickness it portrayed is now managed with antihistamines and scopolamine; the exhaustion is modern sleep and occupational medicine. The berry's chemistry is real, its career in the laboratory.
Look-alikes (how the classical authors told it apart)
| Remedy | Looks similar because… | Tells it apart because… |
|---|---|---|
| Tabacum | Motion sickness | Tabacum is deathly pale and worse opening the eyes; Cocculus is empty and trembling from the ride. |
| Nux vomica | Irritability, nausea | Nux is fiery and spasmodic; Cocculus emptied and hollow. |
| Phosphoricum acidum | Apathetic depletion | Phos-ac is grey indifference; Cocculus emptiness with the motion-sickness. |
| Kali phosphoricum | Mental fatigue | Kali-phos is the anxious grey overwork; Cocculus the emptied carer. |