in rabbits , doses which reduced the mean blood pressure by 15 mmhg were 330 micrograms/kg , i.v. , for terazosin and 42 micrograms/kg , i.v. , for prazosin , while those which depressed the blood pressure responses to tilting by 30 mmhg were 180 micrograms/kg , i.v. , for terazosin and 54 micrograms/kg , i.v. , for prazosin .
C0076107
terazosin
C0032912
prazosin