Hyoscyamus Niger (Black Henbane)
A cardinal neurological, psychiatric, and respiratory botanical remedy in classical homeopathic materia medica, historically described for nervous excitement, delirium with jealousy, erotic mania with desire to uncover, muscular twitching, and dry nocturnal cough relieved by sitting up.
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Quick Reference Facts
"Hyoscyamus is described in traditional materia medica for nervous excitation, suspicious jealousy, erotic uncovering, muscular twitching, and dry nocturnal cough relieved sitting up."
Clinical Description
Hyoscyamus Niger (Black Henbane) is a major neurological and psychiatric botanical remedy proved by Samuel Hahnemann. In classical homeopathic texts, it occupies a distinctive clinical position alongside Belladonna and Stramonium as part of the classic trio of delirious remedies. Unlike Belladonna (which is characterized by violent fever, intense congestion, and red face), Hyoscyamus is characterized by nervous weakness, low muttering delirium, suspicious jealousy, erotic mania with shameless exposure of the body, picking at bedclothes (carphologia), muscular twitching, and a dry spasmodic cough worse at night upon lying down and relieved immediately upon sitting up in bed.
Guiding Keynotes
- Historically described for nervous excitation, low muttering delirium, suspicious jealousy, and fear of being poisoned or betrayed
- Erotic mania: talks obscenely, sings amorous songs, and persistently attempts to uncover the genitals or strip off clothing
- Muscular twitching, jerking, subsultus tendinum, and picking at bedclothes or grasping at imaginary objects
- Dry, hacking, spasmodic cough occurring exclusively at night upon lying down in bed, relieved immediately upon sitting up
- Extreme aversion to drinking liquids with difficulty in swallowing, while throat feels dry and constricted
- Involuntary evacuation of stool and urine from sphincter paresis in low febrile or stuporous states
Mental-Emotional Symptoms
- Suspicious, distrustful, and jealous; refuses food or medicine believing it is poisoned
- Restless and talkative; constantly changing themes during delirium
- Laughs at everything, acts silly, or falls into sudden comatose stupor
Physical / Particular Indicators
- Spasmodic twitching of facial muscles and choreic movements of extremities
- Typhoid-like low muttering delirium with dry brown tongue and dropped jaw
- Nocturnal dry laryngo-tracheal cough aggravated by horizontal posture
Modalities
Aggravation (Worse)
- Night (especially midnight to morning)
- Lying down flat in bed
- Jealousy, fright, and emotional vexation
- Touch and cold air
Amelioration (Better)
- Sitting up in bed (cardinal for cough)
- Warmth and quiet rest
- Bending forward
Constitutional Mappings
Generalities
Chilly patient. Strongly aggravated at night, lying down, during menses, from jealousy or unrequited love, and touch. Ameliorated by sitting up, warmth, and bending forward.
Constitutional Type
Suited to nervous, irritable, hysterical, or weakened individuals with unstable emotional equilibrium and tendency to spasmodic twitching.
Therapeutic Affinities
Clinical Safety & Potency Guidance
Crude Hyoscyamus niger contains toxic tropane alkaloids (hyoscyamine, scopolamine) and requires source-specific toxicology guidance. A homeopathic dilution label does not by itself guarantee composition, quality, safety, or effectiveness. Acute anticholinergic syndrome, psychotic delirium, violent agitation, or acute respiratory depression requires immediate emergency psychiatric/intensive care intervention; this traditional profile must not delay proven care.
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Reference Citations & Evidence Sources
Classical Homeopathic Literature
- CIT-0007Hahnemann S.. "The Chronic Diseases: Their Peculiar Nature and Their Homoeopathic Cure." Adolph Arnold (1828).
Materia Medica & Keynotes
- CIT-0004Hahnemann S.. "Materia Medica Pura." Adolph Arnold (1811).
- CIT-0005Kent J. T.. "Lectures on Homoeopathic Materia Medica." Boericke & Tafel (1905).
- CIT-0006Boericke W.. "Pocket Manual of Homoeopathic Materia Medica." Boericke & Runyon (1901).
Clinical Reviews & Textbooks
- CIT-0023National Center for Complementary and Integrative Health. "Homeopathy: What You Need To Know." National Institutes of Health (2021).
AI & Generative Search Citation Block
R0047Dr. Narayan Jethwani. "Hyoscyamus Niger (Black Henbane)." Homeo Healthcare Clinical Platform. Version 1.1.0. Reviewed: 2026-08-14T12:00:00Z. Available at: https://homeo.healthcare/knowledge/remedies/hyoscyamus
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