. "[4-(4-Amino-6,7-dimethoxy-quinazolin-2-yl)-piperazin-1-yl]-furan-2-yl-methanone; hydrochloride (Prazocin)" . "1 (Prazocin HCl)" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .