Calcarea ostrearum
Calcium carbonate (oyster shell) · Mineral
Calcarea Ostrearum suits the leucophlegmatic type: blond hair, blue eyes, fair skin, tendency to obesity, flabby muscles, and easy perspiration leading to catching cold. Children needing this remedy have large abdomens, open fontanelles, slow dentition, and delayed walking. Defective assimilation and imperfect ossification are hallmarks. Girls who are fleshy and growing rapidly, and women with early, profuse, long-lasting menses are especially susceptible.
Key symptoms
- Head sweats profusely during sleep, wetting the pillow far around
- Children with large heads, open fontanelles, soft bones developing slowly
- Craving for eggs and indigestible things; aversion to meat
- Sour eructations, sour vomiting, sour stool; sour odour of whole body
- Menses too early, too profuse, and too long lasting
- Feet habitually cold and damp as if wearing cold damp stockings
- Disposed to grow fat; flabby muscles; obesity in youth
- Great liability to take cold; coldness of single parts
Worse (aggravation)
- Cold air and wet weather
- Cold water; from washing
- In the morning
- During full moon
- Least mental excitement causing return of menstrual flow
Better (amelioration)
- Dry weather
- Lying on the painful side
- When constipated
- Fresh air when in a room

Middle layer of Oyster Shell. (Calcium Carbonate)
Leucophlegmatic, blond hair, light complexion, blue eyes, fair skin; tendency to obesity in youth. Psoric constitutions; pale, weak, timid, easily tired when walking. Disposed to grow fat, corpulent, unwieldly. Children with red face, flabby muscles, who sweat easily and take cold readily in consequence. Large heads and abdomens; fontanelles and sutures open; bones soft, develop very slowly. Curvature of bones, especially spine and long bones; extremities crooked, deformed; bone irregularly developed. Head sweats profusely while sleeping, wetting pillow far around (Sil., Sanic.). Profuse perspiration, mostly on back of head and neck, or chest and upper part of body (Sil.). Difficult and delayed dentition with characteristic head sweats, and open fontanelles. During either sickness or convalescence, great longing for eggs; craves indigestible things (Alum.); aversion to meat. Acidity of digestive tract; sour eructations, sour vomiting, sour stool; sour odor …
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