Wiktionary
iproclozide
n. A hydrazine drug previously used as an antidepressant, known to cause fulminant hepatitis.
Wikipedia
Iproclozide
Iproclozide (trade names Sursum, Sinderesin) is an irreversible and selective monoamine oxidase inhibitor (MAOI) of the hydrazine chemical class that was used as an antidepressant, but has since been discontinued. It has been known to cause fulminant hepatitis and there have been at least three reported fatalities due to administration of the drug.