Wiktionary
buclizine
n. An antihistamine that is a piperazine derivative, used as an antiemetic.
Wikipedia
Buclizine
Buclizine is an antihistamine and anticholinergic of the piperazine derivative family. It is considered to be an antiemetic, similar to meclizine.
In the United Kingdom, buclizine is one of three drugs contained in Migraleve tablets, marketed by McNeil Healthcare at migraine sufferers.