Cerii Oxalas is used by all three schools in the vomiting of pregnancy. It is a sedative to gastric irritation, and relieves spasmodic reflex vomiting generally. Sometimes it relieves whooping cough. In quite large doses it is a sedative to the nerve centers, and is employed in chorea. In vomiting it is given in doses of I to 3 gr., and in chorea up to the maximum dose of 8 gr. Very small doses of this drug are not employed.