Kalium carbonicum — carbonate of potassium, the "vegetable alkali" that Clarke tells us was originally obtained from the ashes left after burning wood — is the remedy of the giving-out back. Farrington's triad, transmitted by Clarke, is the shortest summary in the literature: "sweat, backache, and weakness".
Boericke opens with the constitutional ground: "The weakness characteristic of all Potassium Salts is seen especially in this, with soft pulse, coldness, general depression, and very characteristic stitches, which may be felt in any part of the body, or in connection with any affection."
Kent is honest about the difficulty: "The Kali carb. patient is a hard patient to study, and the remedy itself is a hard one to study." It is under-prescribed for exactly that reason — "it is a very complex and confusing remedy. It has a great many opposite symptoms, changing symptoms, and thus it is related to patients that withhold their symptoms and have many vague symptoms."
Three signatures nevertheless make it recognisable: the stitching pains, the 2–4 a.m. aggravation, and the bag-like swelling of the upper eyelids. This guide profiles the remedy for clinical study from Boericke's Materia Medica, Clarke's Dictionary, Kent's Lectures, Boger's Synoptic Key and Lippe's Keynotes. The originals can be read in full — Clarke's Kali carbonicum, Boericke's Kali carbonicum and Kent's Kali carbonicum — through Similia's free digital materia medica.
The Kali Carbonicum Constitutional Type
Boericke sketches the physique: "Fleshy aged people, with dropsical and paretic tendencies." Clarke fills it out — the remedy "is suited to persons of soft tissues with tendency to be fat", and its deepest action is on the fibrous tissues, "the ligament of joints, of the uterus, of the back. It corresponds to conditions in which these tissues are relaxed"; joints give way, "the back feels as if broken; the patient feels compelled to lie down in the street."
The centre of gravity is the weak small of the back. Boger capitalises the theme: weakening of "intellection; muscles, heart, back, limbs", the patient "gives out, leans on something or lies down; with backache, profuse secretions, sweat". Clarke records the clinical phrase directly: "Constant backache, the patient feeling all the time that the back and legs must give out." This "giving-out" sensation, he says, "is very characteristic of the remedy."
Thermally the type is unmistakable. Boericke: "Sensitive to every atmospheric change, and intolerance of cold weather." Kent's patient "can never get the room at just exactly the right temperature; he is sensitive to every draft of air and to the circulation of air in the room... He will get up at night in bed and look around to see where that draft of air comes from." Lippe adds the causation: "Great liability to catch cold after having been heated, and aversion to open air and air drafts."
Kent's most valuable observation is prognostic: "There is an insidiousness about Kali carb. in the approach of all of its complaints." The dyspnoea on going uphill, the feeble circulation, the puffing fingers and pitting hands creep up on a patient whose lungs still examine "in very fair condition" — the indications "must be seen early or the patient will advance into an incurable condition."
Mental and Emotional Picture
Never wants to be left alone. Boericke: "Never wants to be left alone. Never quiet or contented." Boger's compression is exact — "Anxious aversion to solitude." Yet this is no warm sociability: the same patient is, in Boericke's words, "Very irritable", quarrelsome, "obstinate and hypersensitive to pain, noise, touch."
Full of fear and imaginations. Kent details what happens when the patient is alone: "fear of the future, fear of death, fear of ghosts", a mind running on catastrophes — "What if the house should burn up!" The sleep is "full of horrible dreams."
Anxiety felt in the stomach. One of the strangest and most confirmable symptoms in the remedy: fear is experienced as a physical sensation at the epigastrium. Boericke lists it twice — "Anxiety felt in stomach" — and Boger notes the patient is "anxious at epigastrium."
Hypersensitive to touch. Clarke: "Cannot bear to be touched; starts when touched ever so lightly, especially on the feet." Easily startled by any noise, particularly if unexpected.
Alternating moods. Boericke lists "Despondent. Alternating moods"; Clarke describes a "changeable humour, at one time evincing mildness and tranquillity, at another time passion and rage", with irresolution, timidity and dread of labour.
Odd sensations colour the mental state. "Sensation as if bed were sinking" (Boericke); Lippe records the "sensation of hollowness in the whole body", and the peculiar symptom "when he shuts his eyes painful sensation from light penetrating into the brain."
Physical Affinities
Chest and respiration
Kali carb is one of the great chest remedies. The cough is "dry, hard... about 3 am, with stitching pains and dryness of pharynx" (Boericke); in "bronchitis, whole chest is very sensitive", and expectoration is scanty, tenacious, cheesy-tasting, "increasing in morning and after eating." Kent traces the sequence from head colds that "go to chest" into chronic bronchitis, with a "spasmodic cough with gagging or vomiting" so violent "it feels as if his head would fly to pieces." Clarke localises it: "K. ca. is more a right than a left-side medicine. The base of the right lung is more affected than any other part" — and he preserves Hahnemann's estimate that "persons suffering from ulceration in the lungs could hardly get well without this antipsoric." Kent gives the anamnestic sentence heard in the consulting room: "Doctor, I have never been quite well since I had pneumonia." In pneumonia itself he assigns it to the stage of hepatization.
Eyes — the bag-like swelling
Boericke: "Swelling over upper lid, like little bags." Kent describes it filling during whooping cough — "a peculiar sort of a swelling between the eyelids and eyebrows that fills up when coughing... It fills up sometimes to the extent of a little water bag" — and Clarke ranks "the occurrence of bag-like swellings over the eyes, between the eyebrows and the upper lids" among the remedy's three grand characteristics. Kent attaches his methodological warning to this very sign: "No remedy should ever be given on one symptom."
Back and limbs
"Small of back feels weak" (Boericke); "severe backache during pregnancy, and after miscarriage"; lumbago "with sudden sharp pains extending up and down back and to thighs." Boger: "Back and legs give out; feel heavy." Clarke notes pain "from hip to knee", which has led to cures of hip-joint disease. The soles are "very sensitive"; parts lain on go to sleep; Lippe records "tearing pain in the limbs, with swelling and aggravation during rest."
Heart and circulation
"Sensation as if heart were suspended" (Boericke); Boger sharpens it — "Heart seems to hang by a thread; pains toward l. scapula" — and Clarke confirms the "sensation as if the heart were suspended by a thread." The pulse is "weak, rapid... intermits"; Boger calls it "small, soft, variable, intermittent or dicrotic." Kent looks back on "cases of fatty degeneration of the heart in which I could have prevented all the trouble with Kali carb. if I had known the case better in the beginning." Dropsy belongs here: "the feet bloat and the fingers puff; the back of the hands pit upon pressure, the face looks puffy and waxy."
Digestion
"Dyspepsia of old people; burning acidity, bloating. Gastric disorders from ice-water" (Boericke), with sour eructations and a "constant feeling as if stomach were full of water." After eating, Kent's patient "feels as if he would burst, so bloated is he." Clarke adds a highly characteristic accompaniment: "Drowsy whilst eating" — weary and sleepy during and after every meal. In the throat there is the classic "sticking pain, as from a fish-bone", with difficult swallowing and easy choking when eating.
Female sphere
Boericke calls it "one of the best remedies following labor. Miscarriage, for consequent debilitated states" — the sweat–backache–weakness triad after confinement is its territory. "Complaints after parturition"; "uterine hæmorrhage; constant oozing after copious flow, with violent backache, relieved by sitting and pressure"; delayed first menses in young girls with chest symptoms.
Key Modalities
Worse from:
- Cold air, draughts, cold water, winter; every atmospheric change
- 2–3 a.m. (Boger); Clarke's grand characteristic "2 to 4 a.m."; Boericke "in morning about three o'clock"
- Lying on the left and on the painful side
- During rest — the stitching pains come at rest (Clarke)
- After coition; loss of fluids; after labour
- Soup and coffee (Boericke)
Better from:
- Warm weather, though moist (Boericke); warmth generally
- During the day, while moving about
- Sitting with elbows on knees (Boger) — the leaning-forward relief of the chest symptoms
Two cautions belong with the modalities, both from Boericke: "Never use any Salts of Potash where there is fever (T. F. Allen)", and the dose note — "Do not repeat too often. Use cautiously in old gouty cases, advanced Bright's and tuberculosis."
Keynote Symptoms
- Sharp, cutting, stitching pains in any part, "in connection with any affection"
- Stitches during rest, worse lying on the affected side — "nearly all better by motion"
- Aggravation at 2–4 a.m. — cough, asthma, fever and fear all choose these hours
- Sweat, backache and weakness — Farrington's grand characteristic triad
- Back and legs give out; must lean on something or lie down
- Bag-like swellings of the upper eyelids, between eyebrow and lid
- Never wants to be left alone; fear and imaginations in solitude
- Anxiety felt in the stomach
- Sensitive to every atmospheric change; the draught-hunting patient
- Pains fly around from place to place, into the uncovered or cold part (Kent)
- Fish-bone sensation in the throat; easy choking when eating
- Heart feels suspended by a thread
- Drowsy while eating
Clinical Applications
The clinical territory the sources record follows the affinities. Chronic chest catarrh — bronchitis, the after-states of pneumonia, threatening phthisis in those who take cold constantly (Boericke notes the "tendency to tuberculosis; constant cold taking; better in warm climate"). Asthmatic dyspnoea waking at 3 a.m., relieved sitting bent forward. Whooping cough with gagging, epistaxis and the baggy eyelids — Kent cites Boenninghausen's epidemic in which most cases needed this remedy. Debilitated states after labour and miscarriage, with backache, sweat and oozing hæmorrhage. Lumbago and hip-to-knee pains, including old hip-joint disease. Dyspepsia of the aged with bloating and sour eructations. Dropsical and cardiac degeneration states in the fleshy and failing, caught early. Clarke's clinical list runs from amenorrhœa and change-of-life flushings (with violent palpitation) through hæmorrhoids — "large, swollen, painful", burning "like coals of fire" in Kent's description — to sick headaches from riding in a cold wind.
Differential Diagnosis
Kali carbonicum vs. Bryonia. The two great stitching-pain remedies of the chest. Clarke's comparison: "Bry. (sharp pains; bilious affections; but Bry. is < by motion)." Bryonia's stitches punish every movement and breath; the Kali carb stitches come during rest, are worse lying on the affected side, and in Clarke's recorded case were "not influenced by pressure or motion" — while Boericke states that nearly all Kali pains are actually better by motion.
Kali carbonicum vs. Phosphorus. Complementary remedies — Boger and Clarke both list Phosphorus as complementary — sharing the right-lung pneumonic ground and the tendency of every cold to settle in the chest; Kent names "Phosphor., Lycopod. and Sulphur" as the neighbours to think of there. Phosphorus is the tall, slender, sympathetic patient who fears alone-ness with thirst for cold drinks; Kali carb is the fleshy, puffy, irritable patient with the 3 a.m. hour, the baggy lids and the giving-out back. Clarke also pairs them at the heart: "Phos. (fatty degeneration of heart)."
Kali carbonicum vs. Arsenicum album. Kent writes: "The burning of Kali carb. is like that of Arsenicum." Both are chilly, anxious, fearful in the small hours and averse to being alone — Clarke groups "Ars., Bis., and Lyc. (averse to be alone)" and lists Arsenicum among the remedies waking at 3 a.m. Arsenicum's anguish is restless and driven, with burning pains relieved by heat and rapid prostration; Kali carb's is stitching, draught-hunted and backache-laden. Clarke's Ide case draws the working line: when the asthmatic state returned without the characteristic weariness-while-eating, Kali carb failed and Arsenicum cured.
Kali carbonicum vs. Natrum muriaticum. Both anæmic, both amenorrhœic. Clarke preserves Hahnemann's practical note: "K. ca. will bring on the menses when Nat. m., though apparently indicated, fails." The backaches also separate: Kali carb's is generally worse lying, Natrum mur's better from pressure and lying on the back.
Repertorisation Tips
These rubrics carry Kali carbonicum in high grade:
- Mind; COMPANY; desire for; alone, agg. when
- Mind; FEAR; alone, of being and Mind; FEAR; ghosts, of
- Mind; ANXIETY; stomach, felt in
- Generalities; PAIN; stitching
- Generalities; NIGHT; midnight, after; 3 h
- Generalities; AIR; draft, agg.
- Eye; SWELLING; lids; upper; bag-like
- Back; WEAKNESS; lumbar region
- Back; PAIN; lumbar region; labour, after; confinement, after
- Cough; NIGHT; midnight, after; 3 h
- Chest; PAIN; stitching; lying on painful side agg.
- Sleep; WAKING; 2 h, at; and cannot sleep again
Anchor the case on the generals — the 2–4 a.m. hour, the stitching quality, the draught sensitivity and the sweat–backache–weakness triad — and use the eyelid bags and the anxiety-in-the-stomach as confirmations rather than starting points, remembering Kent's rule that no remedy should be given on one symptom. Our beginner's guide to repertorisation sets out the method in more detail.
Deepening Your Study
- Boericke gives the compressed essentials — the stitches, the triad, the eyelid bags — plus the T. F. Allen fever warning and the cautions on dose
- Clarke's Dictionary names the three grand characteristics, develops the fibrous-tissue relaxation theory and records the long cured cases, including the "giving-out" thigh
- Kent's Lectures are the fullest psychological study: the draught-hunting, the 3 a.m. fear, the insidiousness of the approach, and the pneumonia anamnesis
- Boger's Synoptic Key compresses the giving-out weakness and the heart hanging "by a thread" into telegraphic form
- Lippe's Keynotes contributes the hollowness sensation, the catch-cold-after-heating causation and the light-through-closed-lids peculiar
You can read all of these side by side for any remedy through Similia's free digital materia medica. To place Kali carbonicum among its peers, see the guide to the essential polycrest remedies, or read how materia medica and repertory work together in case analysis.
