Acidum nitricum

Made from nitric acid — the aqua fortis of the alchemists, whose fuming corrosion gave chemistry its name for a metal test, and the classical remedy of warts and bleeding points.

SourceChemical sourceAcids & chemical salts

The whole picture, in one breath

Think of a system that bleeds at the least touch: warts that crack and bleed, fissures that will not heal, ulcers with ragged edges and offensive discharge, stitching splinter-like pains, and the books' syphilitic-and-gouty legacy all at once. The bleeding-at-every-point remedy: that is Nitric acid.

The substance, in plain words

Nitric acid is aqua fortis — the alchemists' strong water, fuming, corrosive, dissolving copper with red fumes. It genuinely dissolves tissue — it is used to etch, to test, to clean — and its proving gave the library's portrait of bleeding, warty, fissured, corroded surfaces.

The traditional picture Classical sources

The inner state

The body

Modalities (worse and better factors)

Worse from ⬇Better from ⬇
cold damp weather; night; touch of the parts; suppressed discharges.warmth; rest; the discharge established

Where it acts (organ affinities)

Skin (warts, fissures, ulcers), mucous membranes, bones and periosteum, discharges.

Where the classical picture comes from

The acid's corrosion of the proving — bleeding points, ragged edges, splinter-pains — mapped onto the syphilitic-and-gouty casebooks of the era; Nitric acid became the remedy of surfaces that will not heal and points that will not stop bleeding.

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.

Nitric acid's real chemistry is the laboratory's own: aqua fortis tests metals, etches glass, and dissolves the tissue it touches — a genuine, regulated corrosive. The conditions it portrayed — chronic ulcers, warts, bleeding — are today dermatology's territory, and the syphilis it accompanied is cured with penicillin, one of medicine's cleanest victories.

Look-alikes (how the classical authors told it apart)

RemedyLooks similar because…Tells it apart because…
Thuja occidentalisWarts, figwartsThuja's warts are oily, fig-like, left-sided; Nit-ac's crack, bleed and fissure.
StaphysagriaSensitive surfaces, wartsStaphysagria's are the indignation-plantar warts; Nit-ac's the bleeding, cracking, ragged ones.
Hepar sulphurisSplinter pains, suppurationHepar's splinter-pains are chilly and touchy; Nit-ac's are corroding with warty bleeding.
Arsenicum albumAnxiety, burning dischargesArsenicum is chilly, fearful and sipping; Nit-ac is corroded, bleeding and splintered.
Safety. Any ulcer, fissure or wart that bleeds repeatedly, or will not heal for weeks, needs medical assessment — bleeding lesions are examined, not managed.
Compiled by Dr. Sohil Momin, BHMS · Open Materia Medica