Mercurous chloride, a white powder formerly used as a purgative.
More example sentences
- Surgeons relied on strong mercury purgatives, such as calomel or ‘blue pill’.
- Reports of mercury poisoning from beauty creams containing calomel, or mercurous chloride, also surface regularly.
- It includes the famous Livingstone Rousers - the combination of purgatives including calomel, quinine, rhubarb, essence of jalop and opium - which Livingstone found effective in treating his bouts of malaria.