therefore , we measured the heart rate , blood pressure , and plasma catecholamine ( norepinephrine and epinephrine ) responses to the perianal injection of 40 ml of 0.5 % lidocaine alone ( n = 8 ) or 0.5 % lidocaine with 1:200,000 epinephrine ( n = 10 ) in 18 healthy adults undergoing outpatient ano-rectal surgery .
C0007412
catecholamine
C0028351
norepinephrine