Haloperidol
Haloperidol (trade name Haldol) is an antipsychotic drug used to treat Tourette Syndrome, as well as other mental disorders, such as schizophrenia, mania, bipolar disorder, delirium, psychosis as well a variety of other symptoms. It was first synthesized in 1958 by Paul Janssen[1] from meperidine[2]. Haloperidol is on the WHO Model List of Essential Medicines, the most important medications needed in a basic health system.[citation needed]