Acetylsalicylicum acidum

2-Acetoxybenzoic acid (IUPAC); acetylsalicylic acid; ASA. Often listed homeopathically as Acidum acetylsalicylicum or Aspirinum. · Aspirin; ASA; acetylsalicylic acid

Modern MM

A modern drug remedy of the salicylate group. Sphere of action centres on the ears and head (tinnitus, vertigo, headache), the rheumatic/musculo-articular system, the stomach (gastric burning, irritation, haemorrhage) and the blood (haemorrhagic tendency). Indications are drawn chiefly from aspirin's known toxicology and clinical action rather than from a formal proving.

Key symptoms

Indications are inferred from toxicology and from the closely related Salicylicum acidum, NOT from a formal proving of aspirin: tinnitus / roaring and ringing in the ears with deafness; vertigo with tendency to fall; headache with confusion on rising suddenly; rheumatic and arthritic joint pain with swelling and stiffness; fermentative dyspepsia with hot sour belching and burning gastric soreness; fever with profuse sweating; haemorrhagic tendency (haematuria, gastric bleeding). These represent the salicylate symptom-group, used by the Law of Similars.

Worse (aggravation)

No formally proved modalities exist for acetylsalicylic acid specifically. From the toxicological picture and the related Salicylicum acidum (which is aggravated by touch, motion and at night), aggravation is associated with motion and rising suddenly (vertigo/headache), and with overdose/cumulative exposure.

Better (amelioration)

No formally proved ameliorating modalities are documented for acetylsalicylic acid as a homeopathic remedy. By analogy with Salicylicum acidum, hot applications are noted to ameliorate in that related acid.

Manohar V Nagaiah

Materia Medica of Modern Homeopathic Medicine · 2026

Aspirin; ASA; acetylsalicylic acid

Source & Nature

Acetylsalicylicum acidum is the homeopathic preparation of acetylsalicylic acid (aspirin), C9H8O4, MW ~180.16, CAS 50-78-2, PubChem CID 2244. It is a synthetic salicylate ester first marketed by Bayer in 1899 and is among the most widely used drugs in the world — an NSAID analgesic, antipyretic, anti-inflammatory and, at low dose, an antiplatelet agent. In homeopathy it belongs to the acid / salicylate group and is the acetyl ester of Salicylicum acidum.

Preparation

Made by trituration of acetylsalicylic acid to the soluble stage followed by serial dilution and succussion per the homeopathic pharmacopoeia. Commercially available in centesimal potencies — typically 6C, 12C, 30C, 200C and 1M (SBL, Boiron and similar pharmacies).

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Classical texts are in the public domain. Educational reference only — not medical advice.