Which of the following statements describing first dose phenomenon that associated with prazosin is true.. A marked postural hypotension 30 to 90 minutes following the initial dose of prazocin

Which of the following statements describing first dose phenomenon that associated
with prazosin is true? .
A. A marked increase in the level of glucose following the initial dose of prazocin.
B. A marked decrease in the level of glucose following the initial dose of prazocin.
C. A marked increase in the level of cholesterol foilowing the initial dose of prazocin.
D. A marked postural hypotension 30 to 90 minutes following the initial dose of prazocin.***