Sanguinaria canadensis
as H.C. Allen recorded it in Keynotes and Characteristics with Comparisons of Some of the Leading Remedies of the Materia Medica, 1899
This is one author on one remedy. The few symptoms that, when genuinely present, point at one remedy and not its neighbours. Read Sanguinaria canadensis in every book at once →
Keynotes
Sanguinaria Canadensis
Bloodroot. Papaveraceae.
The periodical sick headache; begins in morning, increases during the day, lasts until evening; head feels as if it would burst, or as if eyes would be pressed out ; relieved by sleep.
American sick headache, > by perfect quiet in a dark room (“tired headache” from over mental or physical exertion, Epigea; sick headache < during rest > by rubbing, pressure, motion. Indigo).
Headache begins in occiput, spreads upwards and settles over right eye (Sil. — over or in left orbit, Spig. ).
Headaches, return at the climacteric ; every seventh day (Sabad., Sib, Sulph. — eighth day, Iris).
Neuralgia of face > by kneeling down and pressing the head firmly against the floor; pain extends in all directions from the upper jaw.
Circumscribed red cheeks in afternoon ; burning in ears; in bronchitis, pneumonia, phthisis.
Rheumatic pain in the right arm and shoulder (left, Fer.) ; cannot raise the arm, < at night.
Pains in places where the bones are least covered, as tibia, backs of hands, etc. (Rhus ven.).
Burning in pharynx and oesophagus.
Laryngeal or nasal polypi (Sang, n., Psor., Teuc.).
Climacteric ailments : flushes of heat and leucorrhoea; burning of palms and soles; compelled to throw off bedclothes; painful enlargement of breasts; when Lachesis and Sulphur fail to relieve.
Asthma after the “rose cold,” < from odors.
Cough : dry, waking him at night and not ceasing until he sits up in bed and passes flatus ; circumscribed red cheeks; night sweats; diarrhoea.
Severe cough after whooping-cough ; the cough returns every time patient takes cold.
Eruption on face of young women, especially during scanty menses (Bellis, Cal., Eug. j., Psor. ).
headache; Each., Sulph., in climacteric affections; Chel., Phos., Sulph., Ver. v., in chronic bronchitis or latent pneumonia.
After Bell, fails in scarlatina.
As a dynamic remedy for the narcosis of Opium.
What the other books say about Sanguinaria canadensis
The same remedy read by a different author. They disagree, and the disagreements are where the remedy becomes recognisable.
- Sanguinaria canadensis in Boericke — The concise clinical Materia Medica that most Indian colleges teach from, in full.
- Sanguinaria canadensis in Farrington — Lectures that teach remedies in families, by comparing them with each other.
- Sanguinaria canadensis in Kent — Kent teaching a class, one remedy at a time — fewer remedies, far more on each.
- Sanguinaria canadensis in Boger — A compressed key — the generals and the characteristic modalities, with very little narrative.
Search every book at once, take rubrics from Kent and Bönninghausen, and practise on a patient who answers back — free account.
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Cite this page. H.C. Allen. Keynotes and Characteristics with Comparisons of Some of the Leading Remedies of the Materia Medica. 3rd edition (1910). Philadelphia: Boericke & Tafel. Sanguinaria canadensis — Keynotes, pp. 250–252. HomeopathyWorld, https://homeopathyworld.in/materia-medica/books/allen/sanguinaria-canadensis. Published 1910: public domain in the US (before 1931) and in India (author died 1909). Replaces B. Jain's 2005 "rearranged and classified" edition (© the publisher), per the owner's decision of 13 Sep 2026. Reproduced as the author wrote it; a historical reference for students and practitioners, not medical advice.