Zinc oxide

 Oxide of Zinc 

Oxide of Zinc is an antispasmodic, astringent, and tonic.

Used externally , as an ointment, it forms an excellent astringent in affections of the eyelids, arising from relaxation; or as a powder, it is an excellent detergent for unhealthy ulcers.

Used internally , it has proved efficacious in St. Vitus's dance, and some other spasmodic affections.

Dose , from one to six grains twice a day.