Indicated for Croupiness, Boils, Chills, Cough, Hoarseness, Toothache. Hepar sulphuris calcareum is a homeopathic remedy commonly used for croupiness, coughs, hoarseness, boils, chills, and toothache. Indications for the remedy include chilliness, hypersensitiveness, splinter-like pains, craving for sour and strong things. Patients tend to be worse from exposure to cold, dry air and better in moist wet weather. The remedy is made from burning the white interior of oyster shells with pure flowers of sulphur and is considered a mineral remedy. Active ingredient: Hepar sulphuris calcareum [HPUS]. Inactive ingredient: Alcohol.