Calcarea carb is prepared from oyster shell and is suited for fair, fatty, flabby patients who are chilly and sensitive to cold. It is used for bone and glandular affections, respiratory troubles, and abdominal disorders. Key indications include delayed development, profuse sweating, sour discharges, craving for eggs and indigestible items, and aggravation from cold. It is useful for bronchial asthma, tuberculosis, soft and weak bones with delayed ossification, and pathological fractures.