e/Protiodide

Information
has gloss	eng: Protiodide is an iodide of mercury and was a very commonly used drug in the 19th century, prescribed for everything from acne to kidney disease. It was also the treatment of choice for syphilis. It was available over the counter at any drugstore, the most common form being a concoction of protiodide, licorice, glycerin and marshmallow.
lexicalization	eng: protiodide
instance of	(noun) a salt or ester of hydriodic acid iodide