Iris versicolor
Made from blue flag — the marsh iris whose rhizome was an official cholagogue of the old pharmacopoeias, and the classical remedy of the sour, burning sick-headache.
The whole picture, in one breath
Think of a headache that ends in burning vomit: a sick, blinding headache over one eye with fiery, sour, acrid vomiting that burns the throat and mouth, a liver that will not manage fats, and a pancreas-and-digestion picture behind it all. Sick-headache with sour burning vomit: that is Iris versicolor.
The substance, in plain words
Blue flag is the violet-flowered marsh iris whose rhizome was an official 'cholagogue' of the nineteenth-century pharmacopoeias — a real liver-and-digestion drug, now retired. Its iridin chemistry is genuinely active; the proving gave the library's great migraine portrait.
The traditional picture Classical sources
The inner state
- Irritability before the headache. Cross, sensitive, worse as the headache builds; the books paint the bilious migrainous temperament.
- Depression. Low spirits with the hepatic and digestive background.
- Anxiety about health. Dread of the returning attacks.
The body
- Sick-headache with burning vomit. The keynote: migraine over the eye ending in profuse vomiting of sour, acrid, burning fluid that scalds.
- Fiery, sour acridity. Everything sour and burning — vomit, stool, urine; the mouth and throat feel scalded.
- Worse fats and sweets. Rich food, butter, cream and sugar set the whole picture off.
- Liver-pancreas picture. Right-sided abdominal discomfort, sluggish digestion, the old books' pancreatic association.
- Better for gentle motion. Slow walking in open air relieves; rest aggravates.
- Worse rest and night. Lying still worsens the headache; the attack climbs at night.
Modalities (worse and better factors)
| Worse from ⬇ | Better from ⬇ |
|---|---|
| rich fatty food; sweets; rest and lying; damp weather. | gentle motion; open air; walking slowly. |
Where it acts (organ affinities)
Head (migraine), stomach and pancreas, liver, digestion.
Where the classical picture comes from
The official cholagogue career of blue flag gave the remedy its frame; the proving produced the sour-burning sick-headache, and clinicians applied it to the bilious migraines of the rich-diet era — a portrait modern migraine medicine would call classic.
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.
Blue flag's iridin was a genuine official drug — one of the liver-and-digestion standbys of the old pharmacopoeias, retired as physiology and better drugs advanced. Migraine itself is now managed with modern triptans and preventives — among the great advances of neurological medicine.
Look-alikes (how the classical authors told it apart)
| Remedy | Looks similar because… | Tells it apart because… |
|---|---|---|
| Sanguinaria canadensis | Sick-headache, right side | Sanguinaria's migraine is right-sided with burning and flushing, better lying and sleep; Iris' is sour-vomiting and bilious. |
| Nux vomica | Bilious, irritable | Nux is fiery and spasmodic with morning nausea; Iris is the sour-burning migrainous vomit. |
| Ipecacuanha | Vomiting, nausea | Ipecac's vomiting comes with constant nausea and clean tongue; Iris' with burning sourness and headache. |
| Podophyllum peltatum | Liver and bowel | Podophyllum gushes at dawn; Iris burns upward in the sick-headache. |