Picricum acidum
as H.C. Allen recorded it in Keynotes and Characteristics with Comparisons of Some of the Leading Remedies of the Materia Medica, 1899
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Keynotes
Picric acid
Picric acid. HCqH2(N02)s0.
Is often restorative of a wasted and worn-out system; a fair picture of “nervous prostration” (Kali p.). Progressive, pernicious, ansemia; neurasthenia. Brain fag: of literary or business people; slightest excitement, mental exertion or overwork brings on headache, and causes burning along the spine ( Kali p. ) .
Headache: of students, teachers and overworked business men; from grief or depressing emotions; in occipital-cervical region (Nat. m., Sil.) ; < or brought on by slightest motion or mental exertion.
Priapism, with spinal disease ; erections violent, long-lasting ; profuse seminal emissions ; satyriasis (Canth., Phos.).
Small boils in any part of body, but especially in external auditory canal.
Burning along spine and great weakness of spine and back; softening of cord (Phos., Zinc.).
Weariness, progressing from a slight feeling of fatigue on motion to complete paralysis.
Tired heavy feeling all over body, especially of limbs, < on exertion.
ac., Phos., Petr., Sil.
Amelioration. — From. cold air and cold water.
Aggravation. — Least mental exertion; motion; study ; wet weather.
What the other books say about Picricum acidum
The same remedy read by a different author. They disagree, and the disagreements are where the remedy becomes recognisable.
- Picricum acidum in Boericke — The concise clinical Materia Medica that most Indian colleges teach from, in full.
- Picricum acidum in Farrington — Lectures that teach remedies in families, by comparing them with each other.
- Picricum acidum in Kent — Kent teaching a class, one remedy at a time — fewer remedies, far more on each.
- Picricum acidum 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. Picricum acidum — Keynotes, pp. 225–226. HomeopathyWorld, https://homeopathyworld.in/materia-medica/books/allen/picricum-acidum. 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.