Coca
as H.C. Allen recorded it in Keynotes and Characteristics with Comparisons of Some of the Leading Remedies of the Materia Medica, 1899
Erythroxylon coca
This is one author on one remedy. The few symptoms that, when genuinely present, point at one remedy and not its neighbours. Read Coca in every book at once →
Keynotes
Coca
Erythroxylon Coca. Linece.
For persons who are wearing out under the physical and mental strain of a busy life; who suffer from exhausted nerves and brains (compare, Fluor, ac.).
Melancholy, from nervous exhaustion; bashful, timid, ill at ease in society.
Sad, irritable; delights in solitude and obscurity. Longing for alcoholic liquors and tobacco; for the accustomed stimulants.
Want of breath: in those engaged in athletic sports; shortness of breath, in old people; in those who use tobacco and whiskey to excess.
Haemoptysis, with oppression of chest and dyspnoea.
Sleepy, but can find no rest anywhere.
Violent palpitation: from incarcerated flatus (Arg. n.,Nux) ; from overexertion; from heart strain (Arn., Bor., Caust.).
Bad effects : from mountain climbing or ballooning (Ars.) ; of stimulants, alcohol, tobacco.
Prevents caries of teeth.
company, Stram. ; desires darkness and solitude. Coca.
Was first used as a tobacco antidote.
What the other books say about Coca
The same remedy read by a different author. They disagree, and the disagreements are where the remedy becomes recognisable.
- Coca in Boericke — The concise clinical Materia Medica that most Indian colleges teach from, in full.
- Coca in Boger — A compressed key — the generals and the characteristic modalities, with very little narrative.
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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. Coca — Keynotes, pp. 98–99. HomeopathyWorld, https://homeopathyworld.in/materia-medica/books/allen/coca. 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 Reproduced as the author wrote it; a historical reference for students and practitioners, not medical advice.