Calcarea Carbonica, prepared from the middle layer of the oyster shell, is one of homeopathy's great constitutional remedies. It suits people who are steady, reliable and easily tired — chilly, inclined to sweat on the head, and slow to change.
The Calcarea Carbonica person
- Physical build — often fair, soft or flabby, gains weight easily; children may be slow to walk or teethe.
- Chilly, with cold, damp hands and feet, yet sweats easily — especially on the head at night, wetting the pillow.
- Cravings — eggs, sweets, and indigestible things such as chalk or slate pencils in children.
- Mind — dependable and hard-working but easily overwhelmed; anxious about health, the future, or 'what people will think'; fears of the dark, of insanity or of illness.
- Tires easily, especially on climbing stairs or exertion; worse from cold, damp weather.
Traditionally indicated for
Children's growth and development
Slow teething and walking, large head with head sweats, frequent colds and swollen glands.
Weight and metabolism
Tendency to gain weight with sluggish digestion and fatigue, in the typical constitution.
Digestion
Sour taste, sour vomiting or stools, acidity, and constipation that doesn't bother the person.
Women's health
Periods that come early, are heavy and last long; premenstrual breast swelling.
Anxiety and overwork
Overwhelmed, anxious and exhausted from long effort; worry about health.
Bones and joints
Joint pains and weakness worse in cold, damp weather.
Calcarea Carbonica compared with similar remedies
| Remedy | How it differs |
|---|---|
| Calcarea Phosphorica | Thinner, more restless child who wants to be elsewhere; growing pains |
| Silicea | Thin and chilly, lacks stamina and 'grit', offensive foot sweat |
| Lycopodium | Bloating after small meals, worse 4–8 pm, lack of confidence behind a commanding exterior |
| Sulphur | Warm-blooded rather than chilly, untidy, burning sensations |
Calcarea Carbonica 30 vs Calcarea Carbonica 200: Uses and Differences
Calcarea Carbonica is a deep constitutional remedy, most often used in 30C and 200C, and occasionally 1M. Because it acts slowly and deeply, it is usually given infrequently and allowed time to work.
| Potency | Generally used for | How it is usually used |
|---|---|---|
| Calcarea Carbonica 30 | Complaints that fit the Calcarea picture — head sweats, sour digestion, early heavy periods, recurring colds in a chilly child. | Used less often than acute remedies; the homeopath decides how frequently, then reassesses. |
| Calcarea Carbonica 200 | Constitutional treatment of long-standing patterns in a clear Calcarea case — weight, fatigue, anxiety, slow development. | Usually a single dose or infrequent doses, allowed weeks to act. Normally chosen by a practitioner. |
| Calcarea Carbonica 1M | Deep constitutional prescribing. | Practitioner use only. |
This is general materia medica information, not a prescription. Potency, dose and how often to repeat it should be set by a qualified homeopath after a full case assessment.
Using homeopathic medicines safely
Keep medicines out of reach of children. Store them in a cool, dry place, away from direct sunlight and strong smells such as camphor, menthol or perfume. Don't exceed the dose or frequency your homeopath advises, and seek advice if symptoms get markedly worse.
Calcarea Carbonica: Frequently Asked Questions
What is Calcarea Carbonica 30 used for?▾
Calcarea Carbonica 30 is traditionally used when the Calcarea picture fits: head sweats, chilliness, sour digestion, early and heavy periods, or recurring colds and slow teething in children. The right potency and how often to take it depend on your full case, so a qualified homeopath should decide this.
What is Calcarea Carbonica 200 used for?▾
Calcarea Carbonica 200 is generally used for constitutional treatment of long-standing patterns — weight gain with fatigue, anxiety, slow development in children — chosen and spaced by a homeopath.
Is Calcarea Carbonica used for weight loss?▾
It may be part of constitutional treatment in a person whose overall picture fits Calcarea, but it is not a weight-loss medicine. Diet, activity and checking for thyroid or other causes come first.
Is Calcarea Carbonica safe for children?▾
It is commonly used in children by homeopaths and is generally well tolerated. Slow growth, delayed milestones or frequent infections should also be assessed by a paediatrician.
Does the Calcarea Carbonica picture fit you?
Remedies work best when they're matched to the whole person. Book a consultation with Dr. Meera Thakur — in Kharadi, Pune, or online — rather than self-prescribing.
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Dr. Meera Thakur
BHMS · HealthKunj Clinics, Kharadi, Pune· Published 25 Oct 2026
Medically reviewed by Dr. Meera Thakur, BHMS · Last reviewed 4 Nov 2026
Dr. Meera has 15+ years of experience in individualised homeopathic practice with a special interest in women's hormonal health, skin disorders, and paediatric care.
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