Tier 1 PolychrestGrade CBy Marco RuggeriMarch 4, 2026

Arsenicum Album (White Oxide of Arsenic)

Arsenicum Album is among the most frequently prescribed polychrest remedies in homeopathic practice. Prepared from arsenic trioxide through potentization, it addresses a distinctive pattern of intense anxiety, burning pains relieved by heat, marked restlessness, and prostration out of proportion to the illness. In my clinical experience, the Arsenicum patient is unmistakable — anxious, fastidious, chilly, and restless, with symptoms that worsen predictably after midnight.

At a Glance

| | | |---|---| | Common Name | White Oxide of Arsenic, Arsenic Trioxide | | Abbreviation | Ars. | | Kingdom | Mineral | | Primary Affinity | Digestive system, mind, respiratory, skin | | Typical Potencies | 6C, 30C, 200C, 1M | | Evidence Grade | C | | Similia ID | 778 |

Overview

Arsenicum Album is a very deep-acting remedy that affects every organ and tissue. Its sphere of action centers on three pillars that I look for in every case: the characteristic anxiety with restlessness, the burning pains relieved by warmth, and the prostration disproportionate to the complaint.

The remedy picture emerges from arsenic's toxic profile, refined through potentization. In crude form, arsenic produces violent gastroenteritis, destruction of mucous membranes, and collapse — the same pattern that, in potentized form, guides us toward its clinical applications. The materia medica describes its application across conditions ranging from gastritis and food poisoning to asthma, eczema, and deep-seated anxiety states.

What makes Arsenicum distinctive among the polychrests is the totality: the patient who is simultaneously exhausted yet restless, chilly yet craving open air, fearful yet demanding. This internal contradiction — the body too weak to move, but the mind too anxious to keep still — is the signature of the Arsenicum state.

The Arsenicum Constitution

The constitutional Arsenicum patient tends toward fastidiousness and control. They are concerned with order, cleanliness, and predictability. There is an underlying insecurity — a deep need for safety and stability that, when threatened, produces the characteristic anxiety and clinging dependence. These patients desire company, fear being alone, and seek constant reassurance. They may become hypochondriacal, checking and rechecking their symptoms, researching their condition, and visiting multiple practitioners.

In children, the Arsenicum state manifests as clinginess, capriciousness, and a need to be carried rapidly. The child wants to go from father to mother to nurse, is frightened easily, and cannot be left alone. The elderly Arsenicum patient often shows the fastidiousness most prominently — an exaggerated concern with cleanliness, order, and control that may seem unreasonable to those around them.

Emotionally, the Arsenicum state frequently emerges from experiences of loss, deprivation, or feeling threatened. Material loss, abandonment, poverty, or living through dangerous circumstances can trigger the underlying insecurity. The behavior — the hoarding, the controlling, the clinging — stems from a deep need for stability and safety that feels perpetually out of reach.

Keynote Symptoms

Anxiety and Restlessness

The mental state is the most reliable guide to Arsenicum. The anxiety is not the sudden panic of Aconitum or the anticipatory dread of Gelsemium — it is a grinding, relentless anguish that drives the patient from place to place. They change position constantly, pace the room, wring their hands, and moan. The restlessness is physical as well as mental: even the affected part is restless, and even stuporous states are interrupted by fits of anxious movement.

Key features of the mental picture:

  • Fear of death with a conviction that medicine is useless and recovery impossible
  • Anxiety about health — hypochondriacal worry, fear of cancer, infection, and contamination
  • Fear of being alone — desires company, clings to those nearby, begs for help
  • Fastidiousness — upset by disorder, dirt, and imprecision; obsessed with tidiness
  • Despair of recovery — feels it is useless to take medicine, wants to give up
  • Worse at night — particularly after midnight, when anxieties magnify

Burning Pains

The hallmark physical symptom of Arsenicum is burning pain that is paradoxically relieved by heat. This is a keynote unlike nearly any other remedy. The patient describes pains like hot needles, red-hot wires, or burning coals — yet warmth, warm applications, and warm drinks bring relief while cold aggravates.

This burning pervades the entire remedy picture: burning in the stomach, burning in the rectum, burning in the throat, burning in the eyes with acrid lachrymation, burning in the skin with itching and restlessness.

Prostration

The weakness of Arsenicum is sudden, severe, and disproportionate. The patient may appear reasonably well when lying still, but is surprised by profound exhaustion on the slightest exertion. This prostration accompanies even minor illnesses and is a reliable guide when other symptoms point toward the remedy. It differs from the gradual weakness of China or the paralytic heaviness of Gelsemium — it is a sudden collapse of vitality.

Thirst Pattern

The Arsenicum thirst is distinctive: frequent small sips rather than large draughts. The patient drinks little and often, preferring warm drinks. Cold water distresses the stomach and may be vomited immediately. This sipping pattern, combined with dryness of the lips (which the patient constantly licks), is a strong confirmatory symptom.

Clinical Uses by System

Digestive System

The digestive tract is one of Arsenicum's most important spheres of action. I prescribe it more frequently for gastrointestinal complaints than for any other indication.

Stomach

The stomach is extremely irritable — the slightest food or drink causes distress, vomiting, or stool, or both together. The burning in the stomach is intense, as from red-hot coals, and is better from warm milk or warm drinks. There is heartburn with belching of acid and bitter substances that seem to excoriate the throat. Nausea and retching follow eating and drinking, and the patient often cannot bear the sight or smell of food.

Key stomach indications:

  • Food poisoning with nausea, vomiting, and diarrhea — one of the primary acute applications. The patient is ill from bad meat, contaminated water, spoiled vegetables, melons, and watery fruits. This is one of the most reliable acute prescribing indications for the remedy.
  • Gastritis with burning pain, better warm drinks and sweet milk, worse cold food and ice water. The stomach feels raw, as if torn. Even the slightest food or drink provokes distress.
  • Dyspepsia from vinegar, acids, ice cream, watery fruits, and spoiled meat. Ice cold water distresses the stomach and is vomited immediately.
  • Vomiting — the progression is characteristic: first clear water, then thick glairy or grass-green mucus, and in severe cases blood. Nausea with heat and sweetish taste in the mouth.
  • Aversion to food — cannot bear the sight, smell, or thought of food during illness. There may be aversion to sweets, fats, and farinaceous foods, while craving acidic things, coffee, brandy, and warm drinks.

Abdomen

Violent abdominal pains with anguish characterize the Arsenicum picture. The pains are crampy, cutting, and cause the patient to turn and twist. There is coldness and chilliness in the abdomen, rumbling in the bowels, and burning gnawing pains relieved by external heat. Gastroenteritis with simultaneous vomiting and diarrhea is a major indication.

Rectum and Stool

The stool picture of Arsenicum is vivid in the materia medica:

  • Diarrhea from spoiled food, alcoholic excess, or chilling the stomach
  • Small, dark, offensive stools with prostration out of proportion to the fluid loss
  • Rice-water stools in cholera-like conditions
  • Burning pain and pressure in the rectum and anus
  • Hemorrhoids that burn like fire, paradoxically relieved by warmth
  • Dysentery with dark, bloody, extremely offensive stools
  • Worse at night, after eating and drinking

The cadaverous odor of the stool is characteristic — it may scent the entire room.

Liver

Hepatitis from bad food or poisoning is a specific indication. There is burning pain in the liver region, better from warm drinks, with enlargement and induration. The liver and spleen may both be enlarged and painful, particularly in malarial conditions.

Mind and Emotions

Beyond the acute anxiety described above, Arsenicum covers deep psychological states:

  • Obsessive-compulsive tendencies — the fastidiousness extends into obsessive checking, ordering, and controlling behaviors
  • Insecurity and dependence — a deep sense of vulnerability that drives clinging, hoarding, and possessiveness
  • Irritability alternating with despondency — the patient oscillates between demanding anger and hopeless melancholy
  • Fear of poverty and financial loss — miserliness and anxiety about material security
  • Depression rooted in despair of recovery, loss, or abandonment
  • Domineering and controlling behavior — stemming from the underlying need for order and safety

In acute mental states, there may be delirium, mania with a desire to be held, suicidal impulses driven by suffering, and hallucinations. The patient may see vermin, imagine thieves, or fear that they have committed a crime.

Respiratory System

Arsenicum is a major asthma remedy. The respiratory picture features:

  • Asthma worse after midnight, especially around 1–2 AM
  • Asthma from suppressed skin eruptions — a critical clinical observation
  • Suffocative attacks during sleep, forcing the patient to sit up
  • Hay fever and allergic coryza with thin, watery, excoriating nasal discharge
  • Wheezing and whistling breathing with anxiety and restlessness
  • Cough worse after midnight, preceded by anxiety, with scanty frothy expectoration
  • Pneumonia with prostration, right-sided lung involvement, and restlessness

The asthma is characteristically triggered by getting colds in midsummer, by excitement, and by ascending. The patient cannot lie down, fears suffocation, and must sit erect. The hay fever features thin, watery, excoriating nasal discharge that reddens the upper lip, with intense burning and itching in the nose. Sneezing is frequent but provides no relief. The coryza is worse outdoors and better in warmth — the opposite of Allium Cepa, which helps differentiate the two.

The connection between suppressed skin eruptions and asthma is clinically significant and well-documented in the Arsenicum picture. When eczema clears — whether spontaneously or through suppressive treatment — and breathing difficulties appear shortly afterward, Arsenicum should be among the first remedies considered.

Skin

The skin manifestations of Arsenicum are extensive and clinically significant:

  • Dry, rough, scaly eruptions worse from cold, with violent burning and itching
  • Urticaria with burning and restlessness, worse from shellfish
  • Psoriasis with bran-like scales and intense nocturnal itching
  • Eczema with acrid discharges and restless scratching
  • Skin symptoms alternating with asthma or internal disorders — a key observation for treatment
  • Ulcers with burning, cutting pain, offensive bloody discharge, and sensation of coldness

The skin generally is oversensitive, dry, and parchment-like. Eruptions that are suppressed or undeveloped may drive symptoms inward, producing asthma or internal complaints.

Modalities

| Worse | Better | |---|---| | After midnight (1–3 AM) | Warmth, warm drinks, warm wraps | | Cold air, cold food, cold drinks | Hot dry applications | | Wet weather, cold damp | Company, reassurance | | Seashore | Motion, walking about | | Right side | Head elevated, sitting erect | | Exertion | Sweating | | Suppressed eruptions | Open air | | Lying on affected part | | | Periodically (every 14 days, yearly) | | | Alcohol, quinine, tobacco | |

The midnight aggravation is among the most reliable modalities in the materia medica. Symptoms that wake the patient between midnight and 3 AM — whether asthma, anxiety, diarrhea, or pain — strongly suggest Arsenicum. The periodicity is also notable: complaints may recur every day, every fortnight, every six weeks, or annually.

Remedy Relationships

Complementary Remedies

  • Carbo Vegetabilis — follows well in digestive collapse, air hunger, and venous stasis
  • Phosphorus — complements in respiratory and hemorrhagic conditions
  • Thuja — complementary in constitutional treatment, especially with suppressed conditions
  • Secale — complementary in circulatory and gangrenous states

Antidoted By

Camphor, China, Ferrum, Graphites, Hepar Sulphuris, Iodum, Ipecacuanha, Nux Vomica, Sambucus, Tabacum, Veratrum, Carbo Vegetabilis, Lachesis, Mercurius, Phosphorus

Follows Well After

Aconitum, Agaricus, Arnica, Belladonna, Chamomilla, China, Ipecacuanha, Lachesis, Veratrum

Followed Well By

Aranea, Nux Vomica, Iodum, Sulphur, Rhus Toxicodendron

Compare

  • Bryonia — Bry. drinks much and seldom; Ars. drinks little and often. Bry. eats little and often; Ars. eats much at a time.
  • Phosphorus — both have burning pains and prostration, but Phos. thirsts for large cold drinks and is warm-blooded; Ars. sips warm drinks and is chilly.
  • Veratrum Album — shares the collapse picture with coldness and prostration, but Verat. has cold sweat on the forehead and violent purging without the burning of Ars.
  • China — both show prostration after fluid loss, but China has bloating unrelieved by passing flatus and periodicity without the burning restlessness.
  • Carbo Vegetabilis — shares the digestive collapse, but Carb-v. craves fanning and fresh air, while Ars. craves warmth.
  • Nux Vomica — both cover digestive disturbance from excess, but Nux-v. is irritable, oversensitive, and has ineffectual urging, while Ars. is anxious, restless, and has burning diarrhea.

Tissue Affinities

Arsenicum Album acts on virtually every tissue, but its primary affinities include:

  • Mucous membranes — producing acrid, thin, scanty discharges that excoriate surrounding tissues. This applies to the nose (coryza), the eyes (lachrymation), the rectum (burning stool), and the respiratory tract.
  • Digestive tract — from the lips (dry, cracked, constantly licked) through the stomach (burning, irritable, raw) to the rectum (burning, tenesmus, acrid stool). The entire alimentary canal is affected.
  • Nervous system — producing neuralgias, especially right-sided, with burning character. Peripheral neuritis, chorea, and restlessness belong here.
  • Blood and blood vessels — hemorrhages of dark, offensive blood. Anemia, chlorosis, and septic states. Varicose veins that burn. The remedy reduces the refractive index of blood serum.
  • Skin — dry, rough, scaly, parchment-like. Tendency to desquamation, ulceration, and destruction of tissue. The skin eruptions alternate with internal (especially respiratory) complaints.

The right side of the body is predominantly affected — the right lung, the right side of the abdomen, and right-sided neuralgias are all characteristic.

Causations

Arsenicum should be considered for ailments arising from:

  • Food poisoning, spoiled meat, bad water, decayed food
  • Eating ices, ice water, watery fruits
  • Alcoholism and tobacco abuse
  • Care, grief, fright, shock of loss or abandonment
  • Financial loss, poverty, and insecurity
  • Suppressed skin eruptions
  • Sea bathing and seashore exposure
  • Quinine and its effects

Conditions Treated

Frequently Asked Questions

When should I consider Arsenicum Album for digestive complaints?

Arsenicum is one of the first remedies I consider when a patient presents with food poisoning or acute gastroenteritis — particularly when there is simultaneous vomiting and diarrhea, burning pain in the stomach and rectum, rapid prostration, and restlessness. The combination of burning sensations relieved by warm drinks, thirst for small sips, and marked anxiety about the illness points strongly toward this remedy. For chronic digestive conditions like IBS, Arsenicum fits the patient whose symptoms worsen after midnight, who is anxious and fastidious, and whose burning diarrhea is accompanied by weakness that seems out of proportion.

How does Arsenicum differ from other anxiety remedies?

The anxiety of Arsenicum is distinctive in its quality and timing. Unlike Aconitum (sudden panic from shock), Argentum Nitricum (anticipatory anxiety with hurry), or Gelsemium (paralytic anxiety before events), Arsenicum anxiety is a grinding, persistent anguish about health, death, and security. It worsens at night, especially after midnight, and is accompanied by physical restlessness — the patient cannot keep still. The fear of death is not the acute terror of Aconitum but a deeper despair, a conviction that recovery is impossible. Company and reassurance provide temporary relief.

What potency is typically used for Arsenicum Album?

For acute conditions such as food poisoning or acute gastroenteritis, 30C taken every few hours (reducing frequency as symptoms improve) is a common starting point. For chronic conditions like IBS or constitutional anxiety, practitioners often begin with 30C taken once daily or less frequently, adjusting based on response. Higher potencies (200C, 1M) may be indicated when the mental and emotional picture matches closely and the patient has good vitality. Potency selection always depends on the individual case — the closeness of the symptom match, the sensitivity of the patient, and the nature of the condition being treated.

Can Arsenicum help with skin conditions?

Arsenicum has a significant relationship with the skin. The dry, rough, scaly eruptions with violent burning and itching — worse at night and from cold, better from warmth — are characteristic. A particularly important clinical observation is the alternation between skin symptoms and internal complaints, especially asthma. When eczema or psoriasis is suppressed (whether through treatment or spontaneously) and respiratory or digestive symptoms appear, Arsenicum may address both the surface and the deeper disturbance. Urticaria from shellfish, with burning and restlessness, is another specific indication.

References

  1. Murphy, R. Nature's Materia Medica. 3rd ed. Lotus Health Institute, 2006. Arsenicum Album.
  2. Boericke, W. Pocket Manual of Homoeopathic Materia Medica. 9th ed. B. Jain Publishers, 2002. Arsenicum Album.
  3. Clarke, J.H. A Dictionary of Practical Materia Medica. B. Jain Publishers, 2005. Arsenicum Album.
  4. Kent, J.T. Lectures on Homoeopathic Materia Medica. B. Jain Publishers, 2006. Arsenicum Album.
  5. Similia.io repertorization: Complete repertory, March 2026, remedy ID 778. Symptom queries: anxiety restlessness midnight, burning pains better warmth, diarrhea food poisoning prostration, fastidiousness fear death.