Natrum sulphuricum
Made from Glauber's salt — the sulfate purgative of the old dispensaries, and the classical remedy of ailments from damp and the head-injury's dark sequel.
The whole picture, in one breath
Think of a person whose enemy is the wet season: asthma that owns the small hours and the wet weather, ailments that began after a head injury with dark, dangerous thoughts, a chronic sogginess of the whole constitution, and the books' great damp-remedy beside Dulcamara. The damp-worse, head-injury-shadow remedy: that is Natrum sulphuricum.
The substance, in plain words
Sodium sulfate is Glauber's salt — the bitter sulfate purgative of the seventeenth-century dispensaries, named for Glauber who first described it. A genuine laxative drug for two centuries; the proving gave the remedy its portrait of damp-linked asthma and the melancholy that follows head injury.
The traditional picture Classical sources
The inner state
- Dark thoughts after head injury. The keynote of the mind: suicidal melancholy, the wish to die, following a blow to the head — the books record it with gravity.
- Irritability. Cross, worse in damp weather, worse in the morning.
- Anxiety and gloom. Anxious foreboding, worse in the wet season and the quiet hours.
The body
- Asthma of damp and the small hours. The keynote: asthma worse in wet weather and between four and five in the morning; must sit up, holding the chest.
- Ailments from damp. Every complaint worsens with the wet season — like Dulcamara, in the deeper constitution.
- After head injury. The headaches, the vertigo, and the dark mind that follow the blow — the books' great head-injury remedy.
- Chronic sogginess. A sodden, heavy, never-quite-dry constitution — the sulfate's water-balance legacy.
- Worse damp cold and 4–5 a.m.. The wet season and the small hours own the breathing.
- Better for open air and dry weather. Dry, open air relieves like nothing else; the sufferer longs for the desert.
Modalities (worse and better factors)
| Worse from ⬇ | Better from ⬇ |
|---|---|
| cold damp weather; 4–5 a.m.; head injury's aftermath; summer | open air; dry weather; warmth. |
Where it acts (organ affinities)
Lungs and respiration (damp asthma), mind after head injury, water balance, liver.
Where the classical picture comes from
Glauber's salt's purgative career gave the proving its watery frame; clinically Nat-sulph attached to the damp-season asthmatics and the head-injured with dark thoughts — a pairing the old books record with more clinical honesty than many later eras managed.
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.
Glauber's salt was a genuine, official laxative of the dispensaries for two centuries — effective, then retired. The damp-asthma it portrayed is now asthma's modern management: trigger avoidance, inhaled steroids, biologics; and the post-head-injury melancholy is now recognised neuropsychiatry — both territories have real, effective medicine.
Look-alikes (how the classical authors told it apart)
| Remedy | Looks similar because… | Tells it apart because… |
|---|---|---|
| Dulcamara | Ailments from damp | Dulcamara's ailments follow getting wet; Nat-sulph's the deeper constitutional damp-asthma. |
| Kali carbonicum | 2–4 a.m. asthma | Kali-carb owns 2–4 a.m. with the stitching back; Nat-sulph 4–5 with the damp. |
| Natrum muriaticum | Salt family, melancholy | Nat-mur grieves silently with salt; Nat-sulph sogs with the damp and the dark sequel. |
| Aurum metallicum | Dark despair | Aurum's despair is proud and heart-full; Nat-sulph's follows the head injury with the damp. |