Reversal of Nitrogen Mustard Intoxication by a Serotonin Antagonist.

Abstract
The intraperitoneal administration of a pyrazolone compound before and after a single intraperitoneal nearly-lethal dose of N mustard had been given to mice produced a marked reduction of the mortality expected from the N mustard. Furthermore the leukopenia resulting from the N mustard was considerably less in extent and duration.