Synonyms: 2,4(1H,3H)-Quinazolinedione,3-[3-[4-(3-chlorophenyl)-1-piperazinyl]propyl]-, monohydrochloride (9CI);2,4(1H,3H)-Quinazolinedione, 3-[3-[4-(m-chlorophenyl)-1-piperazinyl]propyl]-,monohydrochloride (8CI);3-[3-(4-m-Chlorophenyl-1-piperazyl)propyl]-1,2,3,4-tetrahydroquinazoline-2,4-dionehydrochloride; 3-[3-[4-(m-Chlorophenyl)-1-piperazinyl]propyl]-2,4-(1H,3H)-quinazolinedionehydrochloride; Cloperidone hydrochloride; MA 1337