Bismuthum Subnitricum: The Classic Bismuth Gastric Remedy

What Is Bismuthum Subnitricum?

Bismuthum Subnitricum is a homeopathic remedy prepared from basic bismuth nitrate (bismuth oxynitrate, BiONO₃·H₂O) — the partially hydrolysed form of bismuth nitrate used historically as a gastrointestinal protective and antacid agent under the name bismuth subnitrate. This preparation is the most widely referenced of the Bismuth remedies in the classical materia medica — Farrington, Clarke, and Allen all discuss it in detail, and it is the preparation most commonly intended when homeopathic literature refers to Bismuth in general terms.

Key Characteristics

• Intense gastric pain — burning, pressing, and deep in the epigastrium, of cancer-like severity
• Immediate post-prandial vomiting — every meal is vomited within minutes of eating
• Cold water craved and drunk in large quantities, then vomited as soon as it warms in the stomach
• The hallmark inability to be alone — the patient clings to others and is terrified of solitude
• Extreme pallor — the face is white and the patient appears severely ill
• Gastric pain radiates to the spine — a pressing, deep, penetrating quality
• Better momentarily from cold applied to the abdomen

Mental Picture

Allen describes the Bismuthum Subnitricum patient as one who cannot bear solitude under any circumstances during illness — they must have someone present at all times. This is not simply a preference but a fearful, urgent need. The anxiety is profound. Between the gastric pain and the terror of being alone, the patient is in constant distress. Farrington notes that this mental keynote is one of the most reliable and specific in the entire materia medica for directing the prescriber to Bismuth.

Physical Picture

The physical picture is of severe gastric disease. The burning pain is deep and cancer-like in quality — it alarms both patient and practitioner. Every meal ends in vomiting. Cold water brings brief relief as a cold liquid but is promptly expelled as it reaches body temperature. The patient is pale, exhausted, and hunched over the gastric pain. The spine is painful from the referred gastric radiation. Cold applications to the abdomen provide momentary comfort.