1) Belgian invention 2) Diphenylbutyl piperidine 
Pimozide (Orap) is an antipsychotic drug of the diphenylbutylpiperidine class. It was discovered at Janssen Pharmaceutica in 1963. It has a high potency compared to chlorpromazine (ratio 50-70:1). On a weight basis it is even more potent than haloperidol. It also has special neurologic indications for Tourette syndrome and resistant tics. The side...
(from the article `Tourette syndrome`) ...syndrome; though symptoms may improve with age. Medications are used only when symptoms interfere with functioning; haloperidol is the most ...
<drug> This antipsychotic drug is used to treat schizophrenia. ... (09 Oct 1997) ... 
(pi´mә-zīd) an antipsychotic agent and antidyskinetic agent used in the treatment of Gilles de la Tourette syndrome; administered orally.
[n] - the most commonly used diphenylbutyl piperidine
The most commonly used diphenylbutyl piperidine. An antipsychotic drug, C28H29F2N3O, used in the treatment of chronic schizophrenia and in the management of Tourette's syndrome. An older type of medication, also classified as a typical antipsychotic or conventional neuroleptic.
noun the most commonly used diphenylbutyl piperidine